* [PATCH] : ir250_act200l_ma600_drivers.diff
@ 2002-06-11 0:52 Jean Tourrilhes
0 siblings, 0 replies; only message in thread
From: Jean Tourrilhes @ 2002-06-11 0:52 UTC (permalink / raw)
To: Jeff Garzik, irda-users, Linux kernel mailing list
ir250_act200l_ma600_drivers.diff :
--------------------------------
<Following patch from Shimizu Takuja/Gerhard Bertelsmann>
o [FEATURE] Dongle driver for ActiSys 200L hardware
<Following patch from Leung/me>
o [FEATURE] Dongle driver for Mobile Action MA600 hardware
diff -u -p linux/include/linux/irda.d9.h linux/include/linux/irda.h
--- linux/include/linux/irda.d9.h Mon Jun 3 17:27:04 2002
+++ linux/include/linux/irda.h Mon Jun 3 17:34:14 2002
@@ -68,6 +68,8 @@ typedef enum {
IRDA_OLD_BELKIN_DONGLE = 7,
IRDA_EP7211_IR = 8,
IRDA_MCP2120_DONGLE = 9,
+ IRDA_ACT200L_DONGLE = 10,
+ IRDA_MA600_DONGLE = 11,
} IRDA_DONGLE;
/* Protocol types to be used for SOCK_DGRAM */
diff -u -p linux/drivers/net/irda/Config.d9.help linux/drivers/net/irda/Config.help
--- linux/drivers/net/irda/Config.d9.help Mon Jun 3 17:27:28 2002
+++ linux/drivers/net/irda/Config.help Mon Jun 3 17:28:29 2002
@@ -157,3 +157,11 @@ CONFIG_OLD_BELKIN_DONGLE
called old_belkin.o. Some information is contained in the comments
at the top of <file:drivers/net/irda/old_belkin.c>.
+ACTiSYS IR-200L dongle (Experimental)
+CONFIG_ACT200L_DONGLE
+ Say Y here if you want to build support for the ACTiSYS IR-200L
+ dongle. If you want to compile it as a module, say M here and read
+ Documentation/modules.txt. The ACTiSYS IR-200L dongle attaches to
+ the normal 9-pin serial port connector, and can currently only be
+ used by IrTTY. To activate support for ACTiSYS IR-200L dongles
+ you will have to start irattach like this: "irattach -d act200l".
diff -u -p linux/drivers/net/irda/Config.d9.in linux/drivers/net/irda/Config.in
--- linux/drivers/net/irda/Config.d9.in Mon Jun 3 17:27:35 2002
+++ linux/drivers/net/irda/Config.in Mon Jun 3 17:36:55 2002
@@ -18,6 +18,10 @@ if [ "$CONFIG_DONGLE" != "n" ]; then
if [ "$CONFIG_ARCH_EP7211" = "y" ]; then
dep_tristate ' EP7211 I/R support' CONFIG_EP7211_IR $CONFIG_IRDA
fi
+ if [ "$CONFIG_EXPERIMENTAL" != "n" ]; then
+ dep_tristate ' ACTiSYS IR-200L dongle (Experimental)' CONFIG_ACT200L_DONGLE $CONFIG_IRDA
+ dep_tristate ' Mobile Action MA600 dongle (Experimental)' CONFIG_MA600_DONGLE $CONFIG_IRDA
+ fi
fi
comment 'FIR device drivers'
diff -u -p linux/drivers/net/irda/Makefile.d9 linux/drivers/net/irda/Makefile
--- linux/drivers/net/irda/Makefile.d9 Mon Jun 3 17:27:52 2002
+++ linux/drivers/net/irda/Makefile Mon Jun 3 17:37:24 2002
@@ -25,5 +25,7 @@ obj-$(CONFIG_LITELINK_DONGLE) += litelin
obj-$(CONFIG_OLD_BELKIN_DONGLE) += old_belkin.o
obj-$(CONFIG_EP7211_IR) += ep7211_ir.o
obj-$(CONFIG_MCP2120_DONGLE) += mcp2120.o
+obj-$(CONFIG_ACT200L_DONGLE) += act200l.o
+obj-$(CONFIG_MA600_DONGLE) += ma600.o
include $(TOPDIR)/Rules.make
diff -u -p linux/drivers/net/irda/act200l.d9.c linux/drivers/net/irda/act200l.c
--- linux/drivers/net/irda/act200l.d9.c Mon Jun 3 17:32:01 2002
+++ linux/drivers/net/irda/act200l.c Mon Jun 3 17:52:01 2002
@@ -0,0 +1,299 @@
+/*********************************************************************
+ *
+ * Filename: act200l.c
+ * Version: 0.8
+ * Description: Implementation for the ACTiSYS ACT-IR200L dongle
+ * Status: Experimental.
+ * Author: SHIMIZU Takuya <tshimizu@ga2.so-net.ne.jp>
+ * Created at: Fri Aug 3 17:35:42 2001
+ * Modified at: Fri Aug 17 10:22:40 2001
+ * Modified by: SHIMIZU Takuya <tshimizu@ga2.so-net.ne.jp>
+ *
+ * Copyright (c) 2001 SHIMIZU Takuya, 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.
+ *
+ ********************************************************************/
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>
+#include <net/irda/irtty.h>
+
+static int act200l_reset(struct irda_task *task);
+static void act200l_open(dongle_t *self, struct qos_info *qos);
+static void act200l_close(dongle_t *self);
+static int act200l_change_speed(struct irda_task *task);
+
+/* Regsiter 0: Control register #1 */
+#define ACT200L_REG0 0x00
+#define ACT200L_TXEN 0x01 /* Enable transmitter */
+#define ACT200L_RXEN 0x02 /* Enable receiver */
+
+/* Register 1: Control register #2 */
+#define ACT200L_REG1 0x10
+#define ACT200L_LODB 0x01 /* Load new baud rate count value */
+#define ACT200L_WIDE 0x04 /* Expand the maximum allowable pulse */
+
+/* Register 4: Output Power register */
+#define ACT200L_REG4 0x40
+#define ACT200L_OP0 0x01 /* Enable LED1C output */
+#define ACT200L_OP1 0x02 /* Enable LED2C output */
+#define ACT200L_BLKR 0x04
+
+/* Register 5: Receive Mode register */
+#define ACT200L_REG5 0x50
+#define ACT200L_RWIDL 0x01 /* fixed 1.6us pulse mode */
+
+/* Register 6: Receive Sensitivity register #1 */
+#define ACT200L_REG6 0x60
+#define ACT200L_RS0 0x01 /* receive threshold bit 0 */
+#define ACT200L_RS1 0x02 /* receive threshold bit 1 */
+
+/* Register 7: Receive Sensitivity register #2 */
+#define ACT200L_REG7 0x70
+#define ACT200L_ENPOS 0x04 /* Ignore the falling edge */
+
+/* Register 8,9: Baud Rate Dvider register #1,#2 */
+#define ACT200L_REG8 0x80
+#define ACT200L_REG9 0x90
+
+#define ACT200L_2400 0x5f
+#define ACT200L_9600 0x17
+#define ACT200L_19200 0x0b
+#define ACT200L_38400 0x05
+#define ACT200L_57600 0x03
+#define ACT200L_115200 0x01
+
+/* Register 13: Control register #3 */
+#define ACT200L_REG13 0xd0
+#define ACT200L_SHDW 0x01 /* Enable access to shadow registers */
+
+/* Register 15: Status register */
+#define ACT200L_REG15 0xf0
+
+/* Register 21: Control register #4 */
+#define ACT200L_REG21 0x50
+#define ACT200L_EXCK 0x02 /* Disable clock output driver */
+#define ACT200L_OSCL 0x04 /* oscillator in low power, medium accuracy mode */
+
+static struct dongle_reg dongle = {
+ Q_NULL,
+ IRDA_ACT200L_DONGLE,
+ act200l_open,
+ act200l_close,
+ act200l_reset,
+ act200l_change_speed,
+};
+
+int __init act200l_init(void)
+{
+ return irda_device_register_dongle(&dongle);
+}
+
+void __exit act200l_cleanup(void)
+{
+ irda_device_unregister_dongle(&dongle);
+}
+
+static void act200l_open(dongle_t *self, struct qos_info *qos)
+{
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+
+ /* Power on the dongle */
+ self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+ /* Set the speeds we can accept */
+ qos->baud_rate.bits &= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
+ qos->min_turn_time.bits = 0x03;
+
+ MOD_INC_USE_COUNT;
+}
+
+static void act200l_close(dongle_t *self)
+{
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+
+ /* Power off the dongle */
+ self->set_dtr_rts(self->dev, FALSE, FALSE);
+
+ MOD_DEC_USE_COUNT;
+}
+
+/*
+ * Function act200l_change_speed (dev, speed)
+ *
+ * Set the speed for the ACTiSYS ACT-IR200L type dongle.
+ *
+ */
+static int act200l_change_speed(struct irda_task *task)
+{
+ dongle_t *self = (dongle_t *) task->instance;
+ __u32 speed = (__u32) task->param;
+ __u8 control[3];
+ int ret = 0;
+
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+
+ self->speed_task = task;
+
+ switch (task->state) {
+ case IRDA_TASK_INIT:
+ if (irda_task_execute(self, act200l_reset, NULL, task,
+ (void *) speed))
+ {
+ /* Dongle need more time to reset */
+ irda_task_next_state(task, IRDA_TASK_CHILD_WAIT);
+
+ /* Give reset 1 sec to finish */
+ ret = MSECS_TO_JIFFIES(1000);
+ }
+ break;
+ case IRDA_TASK_CHILD_WAIT:
+ WARNING(__FUNCTION__ "(), resetting dongle timed out!\n");
+ ret = -1;
+ break;
+ case IRDA_TASK_CHILD_DONE:
+ /* Clear DTR and set RTS to enter command mode */
+ self->set_dtr_rts(self->dev, FALSE, TRUE);
+
+ switch (speed) {
+ case 9600:
+ default:
+ control[0] = ACT200L_REG8 | (ACT200L_9600 & 0x0f);
+ control[1] = ACT200L_REG9 | ((ACT200L_9600 >> 4) & 0x0f);
+ break;
+ case 19200:
+ control[0] = ACT200L_REG8 | (ACT200L_19200 & 0x0f);
+ control[1] = ACT200L_REG9 | ((ACT200L_19200 >> 4) & 0x0f);
+ break;
+ case 38400:
+ control[0] = ACT200L_REG8 | (ACT200L_38400 & 0x0f);
+ control[1] = ACT200L_REG9 | ((ACT200L_38400 >> 4) & 0x0f);
+ break;
+ case 57600:
+ control[0] = ACT200L_REG8 | (ACT200L_57600 & 0x0f);
+ control[1] = ACT200L_REG9 | ((ACT200L_57600 >> 4) & 0x0f);
+ break;
+ case 115200:
+ control[0] = ACT200L_REG8 | (ACT200L_115200 & 0x0f);
+ control[1] = ACT200L_REG9 | ((ACT200L_115200 >> 4) & 0x0f);
+ break;
+ }
+ control[2] = ACT200L_REG1 | ACT200L_LODB | ACT200L_WIDE;
+
+ /* Write control bytes */
+ self->write(self->dev, control, 3);
+ irda_task_next_state(task, IRDA_TASK_WAIT);
+ ret = MSECS_TO_JIFFIES(5);
+ break;
+ case IRDA_TASK_WAIT:
+ /* Go back to normal mode */
+ self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+ irda_task_next_state(task, IRDA_TASK_DONE);
+ self->speed_task = NULL;
+ break;
+ default:
+ ERROR(__FUNCTION__ "(), unknown state %d\n", task->state);
+ irda_task_next_state(task, IRDA_TASK_DONE);
+ self->speed_task = NULL;
+ ret = -1;
+ break;
+ }
+ return ret;
+}
+
+/*
+ * Function act200l_reset (driver)
+ *
+ * Reset the ACTiSYS ACT-IR200L type dongle.
+ */
+static int act200l_reset(struct irda_task *task)
+{
+ dongle_t *self = (dongle_t *) task->instance;
+ __u8 control[9] = {
+ ACT200L_REG15,
+ ACT200L_REG13 | ACT200L_SHDW,
+ ACT200L_REG21 | ACT200L_EXCK | ACT200L_OSCL,
+ ACT200L_REG13,
+ ACT200L_REG7 | ACT200L_ENPOS,
+ ACT200L_REG6 | ACT200L_RS0 | ACT200L_RS1,
+ ACT200L_REG5 | ACT200L_RWIDL,
+ ACT200L_REG4 | ACT200L_OP0 | ACT200L_OP1 | ACT200L_BLKR,
+ ACT200L_REG0 | ACT200L_TXEN | ACT200L_RXEN
+ };
+ int ret = 0;
+
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+
+ self->reset_task = task;
+
+ switch (task->state) {
+ case IRDA_TASK_INIT:
+ /* Power on the dongle */
+ self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+ irda_task_next_state(task, IRDA_TASK_WAIT1);
+ ret = MSECS_TO_JIFFIES(50);
+ break;
+ case IRDA_TASK_WAIT1:
+ /* Reset the dongle : set RTS low for 25 ms */
+ self->set_dtr_rts(self->dev, TRUE, FALSE);
+
+ irda_task_next_state(task, IRDA_TASK_WAIT2);
+ ret = MSECS_TO_JIFFIES(50);
+ break;
+ case IRDA_TASK_WAIT2:
+ /* Clear DTR and set RTS to enter command mode */
+ self->set_dtr_rts(self->dev, FALSE, TRUE);
+
+ /* Write control bytes */
+ self->write(self->dev, control, 9);
+ irda_task_next_state(task, IRDA_TASK_WAIT3);
+ ret = MSECS_TO_JIFFIES(15);
+ break;
+ case IRDA_TASK_WAIT3:
+ /* Go back to normal mode */
+ self->set_dtr_rts(self->dev, TRUE, TRUE);
+
+ irda_task_next_state(task, IRDA_TASK_DONE);
+ self->reset_task = NULL;
+ break;
+ default:
+ ERROR(__FUNCTION__ "(), unknown state %d\n", task->state);
+ irda_task_next_state(task, IRDA_TASK_DONE);
+ self->reset_task = NULL;
+ ret = -1;
+ break;
+ }
+ return ret;
+}
+
+MODULE_AUTHOR("SHIMIZU Takuya <tshimizu@ga2.so-net.ne.jp>");
+MODULE_DESCRIPTION("ACTiSYS ACT-IR200L dongle driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * Function init_module (void)
+ *
+ * Initialize ACTiSYS ACT-IR200L module
+ *
+ */
+module_init(act200l_init);
+
+/*
+ * Function cleanup_module (void)
+ *
+ * Cleanup ACTiSYS ACT-IR200L module
+ *
+ */
+module_exit(act200l_cleanup);
diff -u -p linux/drivers/net/irda/ma600.d9.c linux/drivers/net/irda/ma600.c
--- linux/drivers/net/irda/ma600.d9.c Mon Jun 3 17:31:06 2002
+++ linux/drivers/net/irda/ma600.c Mon Jun 3 17:52:17 2002
@@ -0,0 +1,356 @@
+/*********************************************************************
+ *
+ * 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/sched.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>
+#include <net/irda/irtty.h>
+
+#ifndef NDEBUG
+ #undef IRDA_DEBUG
+ #define IRDA_DEBUG(n, args...) (printk(KERN_DEBUG args))
+
+ #undef ASSERT(expr, func)
+ #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 = {
+ Q_NULL,
+ IRDA_MA600_DONGLE,
+ ma600_open,
+ ma600_close,
+ ma600_reset,
+ ma600_change_speed,
+};
+
+int __init ma600_init(void)
+{
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+ return irda_device_register_dongle(&dongle);
+}
+
+void __exit ma600_cleanup(void)
+{
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+ 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, __FUNCTION__ "()\n");
+
+ 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
+
+ MOD_INC_USE_COUNT;
+}
+
+static void ma600_close(dongle_t *self)
+{
+ IRDA_DEBUG(2, __FUNCTION__ "()\n");
+
+ /* Power off dongle */
+ self->set_dtr_rts(self->dev, FALSE, FALSE);
+
+ MOD_DEC_USE_COUNT;
+}
+
+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, __FUNCTION__ "()\n");
+
+ ASSERT(task != NULL, return -1;);
+
+ if (self->speed_task && self->speed_task != task) {
+ IRDA_DEBUG(0, __FUNCTION__ "(), busy!\n");
+ 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:
+ WARNING(__FUNCTION__ "(), resetting dongle timed out!\n");
+ 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 __FUNCTION__ "() control byte written != read!\n");
+ 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, __FUNCTION__ "() control byte write read OK\n");
+ #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:
+ ERROR(__FUNCTION__ "(), unknown state %d\n", 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, __FUNCTION__ "()\n");
+
+ ASSERT(task != NULL, return -1;);
+
+ if (self->reset_task && self->reset_task != task) {
+ IRDA_DEBUG(0, __FUNCTION__ "(), busy!\n");
+ 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:
+ ERROR(__FUNCTION__ "(), unknown state %d\n", 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");
+
+/*
+ * Function init_module (void)
+ *
+ * Initialize MA600 module
+ *
+ */
+module_init(ma600_init);
+
+/*
+ * Function cleanup_module (void)
+ *
+ * Cleanup MA600 module
+ *
+ */
+module_exit(ma600_cleanup);
+
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2002-06-11 0:52 [PATCH] : ir250_act200l_ma600_drivers.diff Jean Tourrilhes
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