[PATCH 07/18] lirc driver for the CommandIR USB Transceiver
From: Jarod Wilson
Date: Tue Sep 09 2008 - 00:10:55 EST
Signed-off-by: Jarod Wilson <jarod@xxxxxxxxxx>
Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
CC: Christoph Bartelmus <lirc@xxxxxxxxxxxx>
---
drivers/input/lirc/Kconfig | 7 +
drivers/input/lirc/Makefile | 1 +
drivers/input/lirc/commandir.c | 982 +++++++++++++++++++++++++++++++++++++++
drivers/input/lirc/commandir.h | 68 +++
drivers/input/lirc/lirc_cmdir.c | 596 ++++++++++++++++++++++++
drivers/input/lirc/lirc_cmdir.h | 25 +
6 files changed, 1679 insertions(+), 0 deletions(-)
create mode 100644 drivers/input/lirc/commandir.c
create mode 100644 drivers/input/lirc/commandir.h
create mode 100644 drivers/input/lirc/lirc_cmdir.c
create mode 100644 drivers/input/lirc/lirc_cmdir.h
diff --git a/drivers/input/lirc/Kconfig b/drivers/input/lirc/Kconfig
index e17b39a..67802fe 100644
--- a/drivers/input/lirc/Kconfig
+++ b/drivers/input/lirc/Kconfig
@@ -25,6 +25,13 @@ config LIRC_ATIUSB
help
Driver for the ATI USB RF remote receiver
+config LIRC_CMDIR
+ tristate "CommandIR USB Transceiver"
+ default n
+ depends on LIRC_DEV
+ help
+ Driver for the CommandIR USB Transceiver
+
config LIRC_I2C
tristate "I2C Based IR Receivers"
default n
diff --git a/drivers/input/lirc/Makefile b/drivers/input/lirc/Makefile
index ba8d445..86df97d 100644
--- a/drivers/input/lirc/Makefile
+++ b/drivers/input/lirc/Makefile
@@ -7,6 +7,7 @@ EXTRA_CFLAGS =-DIRCTL_DEV_MAJOR=61 -DLIRC_SERIAL_TRANSMITTER -I$(src)
obj-$(CONFIG_LIRC_DEV) += lirc_dev.o
obj-$(CONFIG_LIRC_ATIUSB) += lirc_atiusb.o
+obj-$(CONFIG_LIRC_CMDIR) += lirc_cmdir.o
obj-$(CONFIG_LIRC_I2C) += lirc_i2c.o
obj-$(CONFIG_LIRC_MCEUSB) += lirc_mceusb.o
obj-$(CONFIG_LIRC_MCEUSB2) += lirc_mceusb2.o
diff --git a/drivers/input/lirc/commandir.c b/drivers/input/lirc/commandir.c
new file mode 100644
index 0000000..a05b0d6
--- /dev/null
+++ b/drivers/input/lirc/commandir.c
@@ -0,0 +1,982 @@
+
+/*
+ *
+ * Hardware Driver for COMMANDIR USB Transceiver
+ * 2005-2007 InnovationOne - Matt Bodkin, Evelyn Yeung
+ *
+ * Version 1.4.2
+ * For 2.4.* or 2.6.* kernel versions
+ * Based on the USB Skeleton driver, versions 0.7 and 2.0
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/autoconf.h>
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/smp_lock.h>
+#include "commandir.h"
+
+#include <linux/kref.h>
+#include <linux/uaccess.h>
+
+#define DRIVER_VERSION "v1.1.2"
+#define DRIVER_AUTHOR "Evelyn Yeung, InnovationOne"
+#define DRIVER_DESC "CommandIR USB Transceiver Driver"
+
+#define USB_CMDIR_VENDOR_ID 0x10c4
+#define USB_CMDIR_PRODUCT_ID 0x0003
+#define USB_CMDIR_MINOR_BASE 192
+
+/* table of devices that work with this driver */
+static struct usb_device_id cmdir_table[] =
+{
+ { USB_DEVICE(USB_CMDIR_VENDOR_ID, USB_CMDIR_PRODUCT_ID) },
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, cmdir_table);
+
+/* circular packet queue */
+unsigned char ourbuffers[QUEUELENGTH][64];
+int waitusecs[QUEUELENGTH];
+int ourbufferlengths[QUEUELENGTH];
+int nexttosend;
+int nexttofill;
+int send_status = SEND_IDLE;
+int last_tx_sec;
+int last_tx_usec;
+
+static int curTXFill;
+struct timeval tp;
+
+int debug_commandir;
+
+/* Structure to hold all of our device specific stuff */
+struct usb_skel {
+ struct usb_device *udev; /* the usb device for this device */
+ struct usb_interface *interface; /* the interface for this device */
+ unsigned char *bulk_in_buffer; /* the buffer to receive data */
+ size_t bulk_in_size; /* the size of the receive buffer */
+ __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
+ __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
+ struct kref kref;
+};
+#define to_skel_dev(d) container_of(d, struct usb_skel, kref)
+
+static struct file_operations cmdir_fops = {
+ .read = cmdir_file_read,
+ .write = cmdir_file_write,
+ .open = cmdir_open,
+ .release = cmdir_release,
+};
+
+/* usb class driver info in order to get a minor number from the usb core,
+ * and to have the device registered with devfs and the driver core */
+static struct usb_class_driver cmdir_class = {
+ .name = "usb/commandir%d",
+ .fops = &cmdir_fops,
+ /* .mode = S_IFCHR | S_IRUSR | S_IWUSR |
+ * S_IRGRP | S_IWGRP | S_IROTH, */
+ .minor_base = USB_CMDIR_MINOR_BASE,
+};
+
+static struct usb_driver cmdir_driver = {
+ .name = "commandir",
+ .probe = cmdir_probe,
+ .disconnect = cmdir_disconnect,
+ .id_table = cmdir_table,
+};
+
+
+static int lcd_device;
+static int rx_device;
+static int def_device;
+
+#define DEFAULT_TRANSMITTERS 0x0F
+static unsigned int transmitters = DEFAULT_TRANSMITTERS;
+static unsigned int next_transmitters = DEFAULT_TRANSMITTERS;
+
+#define CMDIR_VAR_LEN 68
+static char cmdir_var[] =
+"COMMANDIRx:\n TX Enabled: 1, 2, 3, 4\n RX: commandirx\n LCD: commandirx";
+
+
+static void cmdir_delete(struct kref *kref)
+{
+ struct usb_skel *dev = to_skel_dev(kref);
+
+ usb_put_dev(dev->udev);
+ kfree(dev->bulk_in_buffer);
+ kfree(dev);
+}
+
+static int __init usb_cmdir_init(void)
+{
+ int result;
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&cmdir_driver);
+
+ if (result)
+ err("usb_register failed. Error number %d", result);
+
+ return result;
+}
+
+static int cmdir_open(struct inode *inode, struct file *file)
+{
+ struct usb_skel *dev;
+ struct usb_interface *interface;
+ int subminor;
+ int retval = 0;
+
+ subminor = iminor(inode);
+ interface = usb_find_interface(&cmdir_driver, subminor);
+ if (!interface) {
+ err("%s - error, can't find device for minor %d",
+ __func__, subminor);
+ retval = -ENODEV;
+ goto exit;
+ }
+
+ dev = usb_get_intfdata(interface);
+ if (!dev) {
+ retval = -ENODEV;
+ goto exit;
+ }
+
+ kref_get(&dev->kref); /* increment our usage count for the device */
+ file->private_data = dev; /* save object in file's private structure */
+
+exit:
+ return retval;
+}
+
+static int cmdir_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_skel *dev = NULL;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ size_t buffer_size;
+
+ int i;
+ int retval = -ENOMEM;
+ int minor;
+
+ /* allocate memory for our device state and initialize it */
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ err("Out of memory");
+ goto error;
+ }
+ memset(dev, 0x00, sizeof(*dev));
+ kref_init(&dev->kref);
+ dev->udev = usb_get_dev(interface_to_usbdev(interface));
+ dev->interface = interface;
+
+ /* set up the endpoint information */
+ /* use only the first bulk-in and bulk-out endpoints */
+ iface_desc = interface->cur_altsetting;
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i].desc;
+
+ if (!dev->bulk_in_endpointAddr &&
+ (endpoint->bEndpointAddress & USB_DIR_IN) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_BULK)) {
+ /* we found a bulk in endpoint */
+ buffer_size = endpoint->wMaxPacketSize;
+ dev->bulk_in_size = buffer_size;
+ dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
+ dev->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
+ if (!dev->bulk_in_buffer) {
+ err("Could not allocate bulk_in_buffer");
+ goto error;
+ }
+ }
+
+ if (!dev->bulk_out_endpointAddr &&
+ !(endpoint->bEndpointAddress & USB_DIR_IN) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_BULK)) {
+ /* we found a bulk out endpoint */
+ dev->bulk_out_endpointAddr = endpoint->bEndpointAddress;
+ }
+ }
+ if (!(dev->bulk_in_endpointAddr && dev->bulk_out_endpointAddr)) {
+ err("Could not find both bulk-in and bulk-out endpoints");
+ goto error;
+ }
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(interface, dev);
+
+ /* we can register the device now, as it is ready */
+ retval = usb_register_dev(interface, &cmdir_class);
+ if (retval) {
+ /* something prevented us from registering this driver */
+ err("Not able to get a minor for this device.");
+ usb_set_intfdata(interface, NULL);
+ goto error;
+ }
+
+ /* check whether minor already includes base */
+ minor = interface->minor;
+ if (minor >= USB_CMDIR_MINOR_BASE)
+ minor = minor-USB_CMDIR_MINOR_BASE;
+
+ /* let the user know what node this device is now attached to */
+ info("CommandIR USB device now attached to commandir%d", minor);
+
+ reset_cmdir(minor);
+
+ return 0;
+
+error:
+ if (dev)
+ kref_put(&dev->kref, cmdir_delete);
+ return retval;
+}
+
+
+static void cmdir_disconnect(struct usb_interface *interface)
+{
+ struct usb_skel *dev;
+ int minor = interface->minor;
+
+ /* prevent cmdir_open() from racing cmdir_disconnect() */
+ lock_kernel();
+
+ dev = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ /* give back our minor */
+ usb_deregister_dev(interface, &cmdir_class);
+
+ unlock_kernel();
+
+ /* decrement our usage count */
+ kref_put(&dev->kref, cmdir_delete);
+
+ /* check whether minor already includes base */
+ if (minor >= USB_CMDIR_MINOR_BASE)
+ minor = minor-USB_CMDIR_MINOR_BASE;
+
+ info("CommandIR #%d now disconnected", minor);
+
+ /* check if default RX device still exists */
+ if (minor == rx_device) {
+ /* decrement until find next valid device */
+ while (rx_device > 0) {
+ rx_device--;
+ if (cmdir_check(rx_device) == 0)
+ break;
+ }
+ if (minor > 0)
+ info("Active Receiver is on CommandIR #%d", rx_device);
+ }
+}
+
+static int cmdir_release(struct inode *inode, struct file *file)
+{
+ struct usb_skel *dev;
+ int retval = 0;
+
+ dev = (struct usb_skel *)file->private_data;
+ if (dev == NULL)
+ /*dbg(" - object is NULL");*/
+ return -ENODEV;
+
+ /* decrement the count on our device */
+ kref_put(&dev->kref, cmdir_delete);
+ return retval;
+}
+
+static void __exit usb_cmdir_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&cmdir_driver);
+
+}
+
+static int cmdir_check(int device_num)
+{
+ struct usb_interface *interface;
+
+ interface = usb_find_interface(&cmdir_driver,
+ USB_CMDIR_MINOR_BASE+device_num);
+ if (!interface) {
+ /* also check without adding base, for devfs */
+ interface = usb_find_interface(&cmdir_driver, rx_device);
+ if (!interface)
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static void init_cmdir_var(int device_num)
+{
+ int i;
+ unsigned int multiplier = 1;
+
+ for (i = 0; i < device_num; i++)
+ multiplier = multiplier*0x10;
+ transmitters |= multiplier * 0x0F;
+ next_transmitters = transmitters;
+ info("commandir%d reset", device_num);
+ return;
+}
+
+static void reset_cmdir(int device_num)
+{
+ unsigned char ctrl_buffer[MCU_CTRL_SIZE];
+ int retval;
+ int i;
+
+ ctrl_buffer[0] = RESET_HEADER;
+ for (i = 1; i < MCU_CTRL_SIZE; i++)
+ ctrl_buffer[i] = 'j';
+ retval = write_core(ctrl_buffer, MCU_CTRL_SIZE, NULL, device_num);
+
+ init_cmdir_var(device_num);
+ print_cmdir(device_num);
+
+ return;
+}
+
+static void update_cmdir_string(int device_num)
+{
+ int next_comma = 0;
+ int next_pos = 25;
+ unsigned int multiplier;
+ int i;
+
+ /* cmdir_var[] = "COMMANDIRx:\n"
+ * " TX Enabled: 1, 2, 3, 4\n"
+ * " RX: commandirx\n"
+ * " LCD: commandirx\n" */
+
+ cmdir_var[9] = ASCII0+device_num;
+ cmdir_var[50] = ASCII0+rx_device;
+ cmdir_var[67] = ASCII0+lcd_device;
+
+ for (i = 25; i < 35; i++)
+ cmdir_var[i] = ' ';
+
+ multiplier = 1;
+ for (i = 0; i < device_num; i++)
+ multiplier = multiplier*0x10;
+
+ if (transmitters & (multiplier*0x01)) {
+ cmdir_var[next_pos] = '1';
+ next_pos += 3;
+ next_comma++;
+ }
+ if (transmitters & (multiplier*0x02)) {
+ cmdir_var[next_pos] = '2';
+ if (next_comma > 0)
+ cmdir_var[next_pos-2] = ',';
+ next_pos += 3;
+ next_comma++;
+ }
+ if (transmitters & (multiplier*0x04)) {
+ cmdir_var[next_pos] = '3';
+ if (next_comma > 0)
+ cmdir_var[next_pos-2] = ',';
+ next_pos += 3;
+ next_comma++;
+ }
+ if (transmitters & (multiplier*0x08)) {
+ cmdir_var[next_pos] = '4';
+ if (next_comma > 0)
+ cmdir_var[next_pos-2] = ',';
+ next_pos += 3;
+ next_comma++;
+ }
+ return;
+}
+
+static void print_cmdir(int device_num)
+{
+ update_cmdir_string(device_num);
+ info("%s", cmdir_var);
+ return;
+}
+
+static ssize_t cmdir_file_read(struct file *file, char *buffer,
+ size_t count, loff_t *ppos)
+{
+ int retval = 0;
+ int minor = 0;
+ struct usb_skel *dev;
+
+ dev = (struct usb_skel *)file->private_data;
+ minor = dev->interface->minor;
+ if (minor >= USB_CMDIR_MINOR_BASE)
+ minor = minor - USB_CMDIR_MINOR_BASE;
+
+ if (((int)*ppos) == 0) {
+ update_cmdir_string(minor);
+ if (copy_to_user(buffer, cmdir_var, CMDIR_VAR_LEN))
+ retval = -EFAULT;
+ else
+ retval = CMDIR_VAR_LEN;
+ return retval;
+ } else
+ return 0;
+}
+
+/* Read data from CommandIR */
+ssize_t cmdir_read(unsigned char *buffer, size_t count)
+{
+ struct usb_skel *dev;
+ int length, retval = 0;
+
+ struct usb_interface *interface;
+ interface = usb_find_interface(&cmdir_driver,
+ USB_CMDIR_MINOR_BASE+rx_device);
+ if (!interface) {
+ /* also check without adding base, for devfs */
+ interface = usb_find_interface(&cmdir_driver, rx_device);
+ if (!interface)
+ return -ENODEV;
+ }
+ dev = usb_get_intfdata(interface);
+ if (!dev)
+ return -ENODEV;
+ retval = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev,
+ dev->bulk_in_endpointAddr),
+ dev->bulk_in_buffer, min(dev->bulk_in_size, count),
+ &length, HZ*10);
+ if (!retval) {
+ if (!memcpy(buffer, dev->bulk_in_buffer, length))
+ retval = -EFAULT;
+ else {
+ /* current status of the TX buffer */
+ curTXFill = buffer[2];
+ retval = length;
+ }
+ }
+ /* suppress errors */
+ /*
+ else {
+ err("Read from device failed, error %d",retval);
+ }
+ */
+ /* printk(KERN_INFO "CommandIR Reporting TX buffer at %d bytes. \n",
+ * curTXFill); */
+ return retval;
+}
+EXPORT_SYMBOL(cmdir_read);
+
+static ssize_t cmdir_file_write(struct file *file, const char *buffer,
+ size_t count, loff_t *ppos)
+{
+ int retval;
+ int i;
+ int equalsign = 0;
+ int changeType = 0;
+ unsigned char ctrl_buffer[MCU_CTRL_SIZE];
+ char *local_buffer;
+ int minor;
+
+ /* set as default - if non-specific error,
+ * won't keep calling this function */
+ retval = count;
+ local_buffer = kmalloc(count, GFP_KERNEL);
+
+ /* verify that we actually have some data to write */
+ if (count == 0) {
+ err("Write request of 0 bytes");
+ goto exit;
+ }
+ if (count > 64) {
+ err("Input too long");
+ goto exit;
+ }
+
+ /* copy the data from userspace into our local buffer */
+ if (copy_from_user(local_buffer, buffer, count)) {
+ retval = -EFAULT;
+ goto exit;
+ }
+
+ /* parse code */
+ changeType = cNothing;
+ equalsign = 0;
+ for (i = 0; i < MCU_CTRL_SIZE; i++)
+ ctrl_buffer[i] = 'j';
+
+ for (i = 0; i < count; i++) {
+ switch (local_buffer[i]) {
+ case 'X':
+ case 'x':
+ if ((i > 0) && ((local_buffer[i - 1] == 'R')
+ || (local_buffer[i - 1] == 'r')))
+ changeType = cRX;
+ break;
+ case 'S':
+ case 's':
+ if ((i > 1) && ((local_buffer[i - 1] == 'E')
+ || (local_buffer[i - 1] == 'e'))) {
+ if ((local_buffer[i-2] == 'R')
+ || (local_buffer[i-2] == 'r'))
+ changeType = cRESET;
+ }
+ break;
+ case 'L':
+ case 'l':
+ if ((i > 0) && ((local_buffer[i - 1] == 'F')
+ || (local_buffer[i - 1] == 'f')))
+ changeType = cFLASH;
+ break;
+ case 'C':
+ case 'c':
+ if ((i > 0) && ((local_buffer[i - 1] == 'L')
+ || (local_buffer[i - 1] == 'l')))
+ changeType = cLCD;
+ break;
+ case '=':
+ if (changeType != cNothing)
+ equalsign = i;
+ break;
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ if (equalsign > 0) {
+ minor = local_buffer[i] - ASCII0;
+ switch (changeType) {
+ case cRESET:
+ ctrl_buffer[0] = RESET_HEADER;
+ retval = write_core(ctrl_buffer,
+ MCU_CTRL_SIZE,
+ cmdir_write_bulk_callback,
+ minor);
+ if (retval != MCU_CTRL_SIZE) {
+ if (retval == -ENODEV)
+ err("Device %d "
+ "unplugged", minor);
+ else
+ err("Error on write to "
+ "%d", minor);
+ goto exit;
+ } else
+ retval = count;
+ init_cmdir_var(minor);
+ break;
+ case cFLASH:
+ ctrl_buffer[0] = FLASH_HEADER;
+ info("Flashing indicators on device %d",
+ minor);
+ retval = write_core(ctrl_buffer,
+ MCU_CTRL_SIZE,
+ cmdir_write_bulk_callback,
+ minor);
+ if (retval != MCU_CTRL_SIZE) {
+ if (retval == -ENODEV)
+ err("Device %d "
+ "unplugged", minor);
+ else
+ err("Error on write to "
+ "%d", minor);
+ goto exit;
+ } else
+ retval = count;
+ break;
+ case cRX:
+ rx_device = minor;
+ info("Default receiver set to %d",
+ minor);
+ break;
+ case cLCD:
+ lcd_device = minor;
+ info("commandir: Default LCD set to %d",
+ minor);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ case ',':
+ equalsign = 0;
+ changeType = cNothing;
+ break;
+ default:
+ if ((equalsign > 0) && (local_buffer[i] > 32)) {
+ err("Non-numerical argument");
+ goto exit;
+ }
+ break;
+ }
+ }
+
+ if ((changeType != cNothing) && (equalsign == 0))
+ err("No device specified");
+ if (changeType == cNothing)
+ err("Unknown command");
+
+exit:
+ kfree(local_buffer);
+ return retval;
+}
+
+int cmdir_write(unsigned char *buffer, int count,
+ void *callback_fct, int usecdelay)
+{
+ /* Always add to queue, then send queue number
+ * no locks
+ * mbodkin, Sept 8, 2005 */
+ int ret = 0;
+ if (debug_commandir == 1) {
+ do_gettimeofday(&tp);
+ printk(KERN_INFO "cmdir_write at %d\n", (int)tp.tv_usec);
+ }
+ ret = add_cmdir_queue(buffer, count, callback_fct, usecdelay);
+
+ if (ret == -1) {
+ printk(KERN_INFO "cmdir_write returning 0\n");
+ return 0;
+ }
+ return count;
+
+}
+EXPORT_SYMBOL(cmdir_write);
+
+int add_cmdir_queue(unsigned char *buffer, int count,
+ void *callback_vct, int usecdelay)
+{
+ int ret = 0;
+ if ((nexttofill + 1) % (QUEUELENGTH - 1) == nexttosend) {
+
+ /* our buffer is full */
+ printk(KERN_INFO "Too many packets backlogged "
+ "in CommandIR Queue.\n");
+ return -1;
+ }
+ /* go ahead and use this one: */
+ memcpy(ourbuffers[nexttofill], buffer, count);
+ ourbufferlengths[nexttofill] = count;
+ waitusecs[nexttofill] = (usecdelay == 0) ? 10000 : usecdelay;
+ /* printk(KERN_INFO "Adding %d to queue at position %d.\n",
+ * count, nexttofill); */
+ nexttofill = (nexttofill + 1) % (QUEUELENGTH - 1);
+ ret = nexttofill;
+ /* if (timer_running == 0) */
+ send_queue(); /* fake it if the timer's not running */
+ return ret; /* we accepted the full packet */
+
+}
+
+int send_queue()
+{
+ int last_sent = 0;
+ int ret = 0;
+ if (debug_commandir == 1) {
+ do_gettimeofday(&tp);
+ printk(KERN_INFO "Send_queue() at %d\n", (int)tp.tv_usec);
+ }
+ /* initiate the send/callback routine if not already running. */
+ if (send_status == SEND_IDLE) {
+ if (!(nexttofill == nexttosend)) {
+ /* start it up: */
+
+ last_sent = nexttosend - 1;
+ if (last_sent < 0)
+ last_sent = QUEUELENGTH - 1;
+ /* Final check - is it TIME to send this packet yet? */
+ /* if (wait_to_tx(waitusecs[last_sent]) == 0) { */
+ /* always send if there's room,
+ * otherwise wait until room */
+ if (curTXFill < 190) {
+ if (debug_commandir == 1) {
+ do_gettimeofday(&tp);
+ printk(KERN_INFO "Sending packet data "
+ "at %d\n", (int)tp.tv_usec);
+ }
+ ret = cmdir_write_queue(ourbuffers[nexttosend],
+ ourbufferlengths[nexttosend], NULL);
+ if (ret <= 0) {
+ /* send failed - the device is either
+ * unplugged or full
+ * nexttosend =
+ * (nexttosend + 1)
+ * % (QUEUELENGTH - 1); */
+ send_status = SEND_IDLE;
+ return 0; /*send_queue(); */
+ } else
+ nexttosend = (nexttosend + 1)
+ % (QUEUELENGTH - 1);
+ return 1;
+ } else {
+ if (debug_commandir == 1) {
+ do_gettimeofday(&tp);
+ printk(KERN_INFO "Not time to send yet "
+ "- starting timer at %d.\n",
+ (int)tp.tv_usec);
+ printk(KERN_INFO "Enabling timer.\n");
+ }
+ return 0; /* doesn't matter anymore */
+ }
+ } else {
+ if (debug_commandir == 1) {
+ do_gettimeofday(&tp);
+ printk(KERN_INFO "No more data to send %d!\n",
+ (int)tp.tv_usec);
+ }
+ last_tx_sec = 0; /* reset our TX counters */
+ last_tx_usec = 0;
+ return 1; /* nothing more to send! */
+ }
+ } else {
+ if (debug_commandir == 1)
+ /* will try again on the callback */
+ printk(KERN_INFO "Already sending\n");
+ return 1; /* then the timer shouldn't be running... */
+ }
+ return 0; /* should never get here... */
+}
+
+
+int wait_to_tx(int usecs)
+{
+ /* don't return until last_time + usecs has been reached
+ * for non-zero last_tx's. */
+ int wait_until_sec = 0, wait_until_usec = 0;
+ int now_sec = 0, now_usec = 0;
+ if (debug_commandir == 1)
+ printk(KERN_INFO "waittotx(%d)\n", usecs);
+ if (usecs == 0)
+ return 0;
+
+ if (!(last_tx_sec == 0 && last_tx_usec == 0)) {
+ /* calculate wait time: */
+ wait_until_sec = last_tx_sec + (usecs / 1000000);
+ wait_until_usec = last_tx_usec + usecs;
+
+ do_gettimeofday(&tp);
+ now_sec = tp.tv_sec;
+ now_usec = tp.tv_usec;
+
+ if (wait_until_usec > 1000000) {
+ /* we've spilled over to the next second. */
+ wait_until_sec++;
+ wait_until_usec -= 1000000;
+ /* printk(KERN_INFO "usec rollover\n"); */
+ }
+ if (debug_commandir == 1)
+ printk(KERN_INFO "Testing for the right second, now = "
+ "%d %d, wait = %d %d\n",
+ now_sec, now_usec,
+ wait_until_sec, wait_until_usec);
+ /* now we are always on the same second. */
+ if (now_sec > wait_until_sec) {
+ if (debug_commandir == 1)
+ printk(KERN_INFO "Setting last_tx_sec to %d.\n",
+ wait_until_sec);
+ last_tx_sec = wait_until_sec;
+ last_tx_usec = wait_until_usec;
+ return 0;
+ }
+
+ if ((now_sec == wait_until_sec)
+ && (now_usec > wait_until_usec)) {
+ if (debug_commandir == 1)
+ printk(KERN_INFO "Setting last_tx_sec to %d.\n",
+ wait_until_sec);
+ last_tx_sec = wait_until_sec;
+ last_tx_usec = wait_until_usec;
+ return 0;
+ }
+ return -1; /* didn't send */
+ }
+
+ do_gettimeofday(&tp);
+ last_tx_usec = tp.tv_usec;
+ last_tx_sec = tp.tv_sec;
+ return 0; /* if there's no last even, go ahead and send */
+}
+
+
+int cmdir_write_queue(unsigned char *buffer, int count, void *callback_fct)
+{
+ int retval = count;
+ static char prev_signal_num;
+ unsigned char next_mask;
+ unsigned int multiplier;
+ int i;
+
+ send_status = SEND_ACTIVE;
+
+ if (count < 2) {
+ err("Not enough bytes (write request of %d bytes)", count);
+ return count;
+ }
+
+ /* check data; decide which device to send to */
+ switch (buffer[0]) {
+ case TX_HEADER:
+ case TX_HEADER_NEW:
+ /* this is LIRC transmit data */
+ if (curTXFill >= 190) {
+ printk(KERN_INFO
+ "TX buffer too full to send more TX data\n");
+ return 0;
+ }
+ if (next_transmitters != transmitters) {
+ if (buffer[1] != prev_signal_num)
+ /* this is new signal; change transmitter mask*/
+ transmitters = next_transmitters;
+ }
+ prev_signal_num = buffer[1];
+
+ multiplier = 1;
+ for (i = 0; i < MAX_DEVICES; i++) {
+ next_mask = 0;
+ if (transmitters & (0x01*multiplier))
+ next_mask |= TX1_ENABLE;
+ if (transmitters & (0x02*multiplier))
+ next_mask |= TX2_ENABLE;
+ if (transmitters & (0x04*multiplier))
+ next_mask |= TX3_ENABLE;
+ if (transmitters & (0x08*multiplier))
+ next_mask |= TX4_ENABLE;
+
+ if (next_mask > 0) {
+ buffer[1] = next_mask;
+ retval = write_core(buffer, count,
+ callback_fct, i);
+ if (retval != count) {
+ if (retval == -ENODEV)
+ err("Device %d not plugged in",
+ i);
+ else
+ err("Write error to device %d",
+ i);
+ return retval;
+ }
+ }
+ multiplier = multiplier*0x10;
+ }
+ return retval;
+ break;
+ case LCD_HEADER:
+ return write_core(buffer, count, callback_fct, lcd_device);
+ break;
+ default:
+ return write_core(buffer, count, callback_fct, def_device);
+ break;
+ }
+ /* should never get here */
+ return retval;
+
+}
+
+int write_core(unsigned char *buffer, int count,
+ void *callback_fct, int device_num)
+{
+ struct usb_skel *dev;
+ int retval = count;
+
+ struct usb_interface *interface;
+ struct urb *urb = NULL;
+ char *buf = NULL;
+ interface = usb_find_interface(&cmdir_driver,
+ USB_CMDIR_MINOR_BASE + device_num);
+ if (!interface) {
+ /* also check without adding base, for devfs */
+ interface = usb_find_interface(&cmdir_driver, device_num);
+ if (!interface)
+ return -ENODEV;
+ }
+ dev = usb_get_intfdata(interface);
+ if (!dev)
+ return -ENODEV;
+ /* create a urb, and a buffer for it, and copy the data to the urb */
+ urb = usb_alloc_urb(0, GFP_ATOMIC); /* Now -=Atomic=- */
+ if (!urb) {
+ retval = -ENOMEM;
+ goto error;
+ }
+ buf = usb_buffer_alloc(dev->udev, count,
+ GFP_KERNEL, &urb->transfer_dma);
+ if (!buf) {
+ retval = -ENOMEM;
+ goto error;
+ }
+ if (!memcpy(buf, buffer, count)) {
+ retval = -EFAULT;
+ goto error;
+ }
+ /* initialize the urb properly */
+ if (callback_fct == NULL) {
+ usb_fill_bulk_urb(urb, dev->udev,
+ usb_sndbulkpipe(dev->udev,
+ dev->bulk_out_endpointAddr),
+ buf, count, (void *) cmdir_write_bulk_callback, dev);
+ } else {
+ usb_fill_bulk_urb(urb, dev->udev,
+ usb_sndbulkpipe(dev->udev,
+ dev->bulk_out_endpointAddr),
+ buf, count, callback_fct, dev);
+ }
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; /* double check this */
+
+ /* send the data out the bulk port */
+ retval = usb_submit_urb(urb, GFP_KERNEL);
+ if (retval) {
+ err("%s - failed submitting write urb, error %d",
+ __func__, retval);
+ goto error;
+ }
+
+ /* release our reference to this urb, the USB
+ * core will eventually free it entirely */
+ usb_free_urb(urb);
+ return count;
+
+error:
+ usb_buffer_free(dev->udev, count, buf, urb->transfer_dma);
+ usb_free_urb(urb);
+ return retval;
+}
+
+static void cmdir_write_bulk_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_skel *dev;
+ dev = (struct usb_skel *)urb->context;
+ send_status = SEND_IDLE;
+ if (debug_commandir == 1)
+ printk(KERN_INFO "callback()\n");
+ /* free up our allocated buffer */
+
+ usb_buffer_free(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
+ send_queue(); /* send the next packet */
+
+}
+
+int set_tx_channels(unsigned int next_tx)
+{
+ next_transmitters = next_tx;
+ return 0;
+}
+EXPORT_SYMBOL(set_tx_channels);
+
+module_init(usb_cmdir_init);
+module_exit(usb_cmdir_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/lirc/commandir.h b/drivers/input/lirc/commandir.h
new file mode 100644
index 0000000..bed703d
--- /dev/null
+++ b/drivers/input/lirc/commandir.h
@@ -0,0 +1,68 @@
+/*
+ * commandir.h
+ */
+
+#define ASCII0 48
+
+/* transmitter channel control */
+#define MAX_DEVICES 8
+#define MAX_CHANNELS 32
+#define TX1_ENABLE 0x80
+#define TX2_ENABLE 0x40
+#define TX3_ENABLE 0x20
+#define TX4_ENABLE 0x10
+
+/* command types */
+#define cNothing 0
+#define cRESET 1
+#define cFLASH 2
+#define cLCD 3
+#define cRX 4
+
+/* CommandIR control codes */
+#define MCU_CTRL_SIZE 3
+#define FREQ_HEADER 2
+#define RESET_HEADER 3
+#define FLASH_HEADER 4
+#define LCD_HEADER 5
+#define TX_HEADER 7
+#define TX_HEADER_NEW 8
+
+/* Queue buffering constants */
+#define SEND_IDLE 0
+#define SEND_ACTIVE 1
+
+#define QUEUELENGTH 256
+
+extern int cmdir_write(unsigned char *buffer, int count,
+ void *callback_fct, int u);
+extern ssize_t cmdir_read(unsigned char *buffer, size_t count);
+extern int set_tx_channels(unsigned int next_tx);
+
+
+static int cmdir_open(struct inode *inode, struct file *file);
+static int cmdir_probe(struct usb_interface *interface,
+ const struct usb_device_id *id);
+static void cmdir_disconnect(struct usb_interface *interface);
+static int cmdir_release(struct inode *inode, struct file *file);
+static int cmdir_check(int device_num);
+static void init_cmdir_var(int device_num);
+static void reset_cmdir(int device_num);
+static void update_cmdir_string(int device_num);
+static void print_cmdir(int device_num);
+static ssize_t cmdir_file_read(struct file *file, char *buffer,
+ size_t count, loff_t *ppos);
+ssize_t cmdir_read(unsigned char *buffer, size_t count);
+static ssize_t cmdir_file_write(struct file *file, const char *buffer,
+ size_t count, loff_t *ppos);
+int cmdir_write(unsigned char *buffer, int count, void *callback_fct, int u);
+int write_core(unsigned char *buffer, int count,
+ void *callback_fct, int device_num);
+static void cmdir_write_bulk_callback(struct urb *urb, struct pt_regs *regs);
+int set_tx_channels(unsigned int next_tx);
+
+int add_cmdir_queue(unsigned char *buffer, int count,
+ void *callback_vct, int usecdelay);
+int cmdir_write_queue(unsigned char *buffer, int count, void *callback_vct);
+int send_queue(void);
+int wait_to_tx(int usecs);
diff --git a/drivers/input/lirc/lirc_cmdir.c b/drivers/input/lirc/lirc_cmdir.c
new file mode 100644
index 0000000..1faa8e3
--- /dev/null
+++ b/drivers/input/lirc/lirc_cmdir.c
@@ -0,0 +1,596 @@
+/*
+ * lirc_cmdir.c - Driver for InnovationOne's COMMANDIR USB Transceiver
+ *
+ * This driver requires the COMMANDIR hardware driver, available at
+ * http://www.commandir.com/.
+ *
+ * Copyright (C) 2005 InnovationOne - Evelyn Yeung
+ *
+ * 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/version.h>
+
+#include <linux/autoconf.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/poll.h>
+#include "lirc.h"
+#include "lirc_dev.h"
+#include "lirc_cmdir.h"
+
+static int debug;
+#define dprintk(fmt, args...) \
+ do { \
+ if (debug) \
+ printk(KERN_DEBUG fmt, ## args); \
+ } while (0)
+
+struct lirc_cmdir {
+ int features;
+};
+
+struct lirc_cmdir hardware = {
+ (
+ /* LIRC_CAN_SET_SEND_DUTY_CYCLE| */
+ LIRC_CAN_SET_SEND_CARRIER|
+ LIRC_CAN_SEND_PULSE|
+ LIRC_CAN_SET_TRANSMITTER_MASK|
+ LIRC_CAN_REC_MODE2)
+ ,
+};
+
+#define LIRC_DRIVER_NAME "lirc_cmdir"
+#define RBUF_LEN 256
+#define WBUF_LEN 256
+#define MAX_PACKET 64
+
+static struct lirc_buffer rbuf;
+static int wbuf[WBUF_LEN];
+static unsigned char cmdir_char[4*WBUF_LEN];
+static unsigned char write_control[MCU_CTRL_SIZE];
+static unsigned int last_mc_time;
+static int usb_status = ON;
+static unsigned char signal_num;
+char timerval;
+
+unsigned int freq = 38000;
+/* unsigned int duty_cycle = 50; */
+
+
+#ifndef MAX_UDELAY_MS
+#define MAX_UDELAY_US 5000
+#else
+#define MAX_UDELAY_US (MAX_UDELAY_MS*1000)
+#endif
+
+static inline void safe_udelay(unsigned long usecs)
+{
+ while (usecs > MAX_UDELAY_US) {
+ udelay(MAX_UDELAY_US);
+ usecs -= MAX_UDELAY_US;
+ }
+ udelay(usecs);
+}
+
+static unsigned int get_time_value(unsigned int firstint,
+ unsigned int secondint, unsigned char overflow)
+{ /* get difference between two timestamps from MCU */
+ unsigned int t_answer = 0;
+
+ if (secondint > firstint) {
+ t_answer = secondint - firstint + overflow*65536;
+ } else {
+ if (overflow > 0)
+ t_answer = (65536 - firstint) + secondint +
+ (overflow - 1) * 65536;
+ else
+ t_answer = (65536 - firstint) + secondint;
+ }
+
+ /* clamp to long signal */
+ if (t_answer > 16000000)
+ t_answer = PULSE_MASK;
+
+ return t_answer;
+}
+
+
+static int set_use_inc(void *data)
+{
+ /* Init read buffer. */
+ if (lirc_buffer_init(&rbuf, sizeof(int), RBUF_LEN) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void set_use_dec(void *data)
+{
+ lirc_buffer_free(&rbuf);
+}
+
+
+static void usb_error_handle(int retval)
+{
+ switch (retval) {
+ case -ENODEV:
+ /* device has been unplugged */
+ if (usb_status == ON) {
+ usb_status = OFF;
+ printk(LIRC_DRIVER_NAME ": device is unplugged\n");
+ }
+ break;
+ default:
+ printk(LIRC_DRIVER_NAME ": usb error = %d\n", retval);
+ break;
+ }
+}
+
+static int write_to_usb(unsigned char *buffer, int count, int time_elapsed)
+{
+ int write_return;
+
+ write_return = cmdir_write(buffer, count, NULL, time_elapsed);
+ if (write_return != count) {
+ usb_error_handle(write_return);
+ } else {
+ if (usb_status == OFF) {
+ printk(LIRC_DRIVER_NAME ": device is now plugged in\n");
+ usb_status = ON;
+ }
+ }
+ return write_return;
+}
+
+static void set_freq(void)
+{
+ /* float tempfreq = 0.0; */
+ int write_return;
+
+ /*
+ * Can't use floating point in 2.6 kernel!
+ * May be some loss of precision
+ */
+ timerval = (1000000 / freq) / 2;
+ write_control[0] = FREQ_HEADER;
+ write_control[1] = timerval;
+ write_control[2] = 0;
+ write_return = write_to_usb(write_control, MCU_CTRL_SIZE, 0);
+ if (write_return == MCU_CTRL_SIZE)
+ printk(LIRC_DRIVER_NAME ": freq set to %dHz\n", freq);
+ else
+ printk(LIRC_DRIVER_NAME ": freq unchanged\n");
+
+}
+
+static int cmdir_convert_RX(unsigned char *orig_rxbuffer)
+{
+ unsigned char tmp_char_buffer[80];
+ unsigned int tmp_int_buffer[20];
+ unsigned int final_data_buffer[20];
+ unsigned int num_data_values = 0;
+ unsigned char num_data_bytes = 0;
+ unsigned int orig_index = 0;
+ int i;
+
+ for (i = 0; i < 80; i++)
+ tmp_char_buffer[i] = 0;
+ for (i = 0; i < 20; i++)
+ tmp_int_buffer[i] = 0;
+
+ /*
+ * get number of data bytes that follow the control bytes
+ * (NOT including them)
+ */
+ num_data_bytes = orig_rxbuffer[1];
+
+ /* check if num_bytes is multiple of 3; if not, error */
+ if (num_data_bytes % 3 > 0)
+ return -1;
+ if (num_data_bytes > 60)
+ return -3;
+ if (num_data_bytes < 3)
+ return -2;
+
+ /*
+ * get number of ints to be returned; num_data_bytes does
+ * NOT include control bytes
+ */
+ num_data_values = num_data_bytes/3;
+
+ for (i = 0; i < num_data_values; i++) {
+ tmp_char_buffer[i*4] = orig_rxbuffer[(i+1)*3];
+ tmp_char_buffer[i*4+1] = orig_rxbuffer[(i+1)*3+1];
+ tmp_char_buffer[i*4+2] = 0;
+ tmp_char_buffer[i*4+3] = 0;
+ }
+
+ /* convert to int array */
+ memcpy((unsigned char *)tmp_int_buffer, tmp_char_buffer,
+ (num_data_values*4));
+
+ if (orig_rxbuffer[5] < 255) {
+ /* space */
+ final_data_buffer[0] = get_time_value(last_mc_time,
+ tmp_int_buffer[0],
+ orig_rxbuffer[5]);
+ } else { /* is pulse */
+ final_data_buffer[0] = get_time_value(last_mc_time,
+ tmp_int_buffer[0],
+ 0);
+ final_data_buffer[0] |= PULSE_BIT;
+ }
+ for (i = 1; i < num_data_values; i++) {
+ /*
+ * index of orig_rxbuffer that corresponds to
+ * overflow/pulse/space
+ */
+ orig_index = (i + 1)*3 + 2;
+ if (orig_rxbuffer[orig_index] < 255) {
+ final_data_buffer[i] =
+ get_time_value(tmp_int_buffer[i - 1],
+ tmp_int_buffer[i],
+ orig_rxbuffer[orig_index]);
+ } else {
+ final_data_buffer[i] =
+ get_time_value(tmp_int_buffer[i - 1],
+ tmp_int_buffer[i],
+ 0);
+ final_data_buffer[i] |= PULSE_BIT;
+ }
+ }
+ last_mc_time = tmp_int_buffer[num_data_values - 1];
+
+ if (lirc_buffer_full(&rbuf)) {
+ printk(KERN_ERR LIRC_DRIVER_NAME ": lirc_buffer is full\n");
+ return -EOVERFLOW;
+ }
+ lirc_buffer_write_n(&rbuf, (char *)final_data_buffer, num_data_values);
+
+ return 0;
+}
+
+
+static int usb_read_once(void)
+{
+ int read_retval = 0;
+ int conv_retval = 0;
+ unsigned char read_buffer[MAX_PACKET];
+ int i = 0;
+ int tooFull = 5; /* read up to 5 packets */
+
+ for (i = 0; i < MAX_PACKET; i++)
+ read_buffer[i] = 0;
+
+ while (tooFull--) {
+ read_retval = cmdir_read(read_buffer, MAX_PACKET);
+ /* Loop until we unload the data build-up */
+ if (read_buffer[1] < 60)
+ tooFull = 0;
+ if (!(read_retval == MAX_PACKET)) {
+ if (read_retval == -ENODEV) {
+ if (usb_status == ON) {
+ printk(KERN_ALERT LIRC_DRIVER_NAME
+ ": device is unplugged\n");
+ usb_status = OFF;
+ }
+ } else {
+ /* supress errors */
+ printk(KERN_ALERT LIRC_DRIVER_NAME
+ ": usb error on read = %d\n",
+ read_retval);
+ return -ENODATA;
+ }
+ dprintk("Error 3\n");
+ return -ENODATA;
+ } else {
+ if (usb_status == OFF) {
+ usb_status = ON;
+ printk(LIRC_DRIVER_NAME
+ ": device is now plugged in\n");
+ }
+ }
+
+ if (read_buffer[0] & 0x08) {
+ conv_retval = cmdir_convert_RX(read_buffer);
+ if (conv_retval == 0) {
+ if (!tooFull)
+ return 0;
+ else
+ dprintk("Looping for more data...\n");
+ } else {
+ dprintk("Error 2: %d\n", (int)conv_retval);
+ return -ENODATA;
+ }
+ } else {
+ /* There really is no data in their buffer */
+ dprintk("Empty RX Buffer!\n");
+ return -ENODATA;
+ }
+ }
+ return -1;
+}
+
+int add_to_buf(void *data, struct lirc_buffer *buf)
+{
+ return usb_read_once();
+}
+
+
+static ssize_t lirc_write(struct file *file, const char *buf,
+ size_t n, loff_t *ppos)
+{
+ int i, count;
+ unsigned int mod_signal_length = 0;
+ unsigned int time_elapse = 0;
+ unsigned int total_time_elapsed = 0;
+ unsigned int num_bytes_already_sent = 0;
+ unsigned int hibyte = 0;
+ unsigned int lobyte = 0;
+ int cmdir_cnt = 0;
+ unsigned int wait_this = 0;
+ struct timeval start_time;
+ struct timeval end_time;
+ unsigned int real_time_elapsed = 0;
+
+ /* save the time we started the write: */
+ do_gettimeofday(&start_time);
+
+ if (n % sizeof(int))
+ return -EINVAL;
+
+ count = n / sizeof(int);
+ if (count > WBUF_LEN || count % 2 == 0)
+ return -EINVAL;
+ if (copy_from_user(wbuf, buf, n))
+ return -EFAULT;
+
+ /*
+ * the first time we have to flag that this is the start of a new
+ * signal otherwise COMMANDIR may receive 2 back-to-back pulses &
+ * invert the signal
+ */
+ cmdir_char[0] = TX_HEADER_NEW;
+ signal_num++;
+ cmdir_char[1] = signal_num;
+ cmdir_cnt = 2;
+ for (i = 0; i < count; i++) {
+ /* conversion to number of modulation frequency pulse edges */
+ mod_signal_length = wbuf[i] >> 3;
+ /*
+ * account for minor rounding errors -
+ * calculate length from this:
+ */
+ time_elapse += mod_signal_length * timerval;
+
+ hibyte = mod_signal_length / 256;
+ lobyte = mod_signal_length % 256;
+ cmdir_char[cmdir_cnt+1] = lobyte;
+ cmdir_char[cmdir_cnt] = hibyte;
+ cmdir_cnt += 2;
+
+ /* write data to usb if full packet is collected */
+ if (cmdir_cnt % MAX_PACKET == 0) {
+ write_to_usb(cmdir_char, MAX_PACKET, time_elapse);
+
+ total_time_elapsed += time_elapse;
+
+ num_bytes_already_sent += MAX_PACKET;
+ time_elapse = 0;
+
+ if ((i + 1) < count) {
+ /* still more to send: */
+ cmdir_char[0] = TX_HEADER; /* Next Packet */
+ cmdir_char[1] = signal_num;
+ cmdir_cnt = 2; /* reset the count */
+ }
+ }
+ }
+
+ /* send last chunk of data */
+ if (cmdir_cnt > 0) {
+ total_time_elapsed += time_elapse;
+ write_to_usb(cmdir_char, cmdir_cnt, time_elapse);
+ }
+ /* XXX ERS remove all this? */
+ /*
+ * we need to _manually delay ourselves_ to remain backwards
+ * compatible with LIRC and prevent our queue buffer from overflowing.
+ * Queuing in this driver is about instant, and send_start for example
+ * will fill it up quickly and prevent send_stop from taking immediate
+ * effect.
+ */
+ dprintk("Total elapsed time is: %d. \n", total_time_elapsed);
+ do_gettimeofday(&end_time);
+ /*
+ * udelay for the difference between endtime and
+ * start + total_time_elapsed
+ */
+ if (start_time.tv_usec < end_time.tv_usec)
+ real_time_elapsed = (end_time.tv_usec - start_time.tv_usec);
+ else
+ real_time_elapsed = ((end_time.tv_usec + 1000000) -
+ start_time.tv_usec);
+ dprintk("Real time elapsed was %u.\n", real_time_elapsed);
+ if (real_time_elapsed < (total_time_elapsed - 1000))
+ wait_this = total_time_elapsed - real_time_elapsed - 1000;
+
+#if 0 /* enable this for backwards compatibility */
+ safe_udelay(wait_this);
+#endif
+
+ return n;
+}
+
+
+static int lirc_ioctl(struct inode *node, struct file *filep, unsigned int cmd,
+ unsigned long arg)
+{
+ int result;
+ unsigned long value;
+ unsigned int ivalue;
+ unsigned int multiplier = 1;
+ unsigned int mask = 0;
+ int i;
+
+ switch (cmd) {
+ case LIRC_SET_TRANSMITTER_MASK:
+ if (!(hardware.features&LIRC_CAN_SET_TRANSMITTER_MASK))
+ return -ENOIOCTLCMD;
+ result = get_user(ivalue, (unsigned int *) arg);
+ if (result)
+ return result;
+ for (i = 0; i < MAX_CHANNELS; i++) {
+ multiplier = multiplier * 0x10;
+ mask |= multiplier;
+ }
+ if (ivalue >= mask)
+ return MAX_CHANNELS;
+ set_tx_channels(ivalue);
+ return 0;
+ break;
+
+ case LIRC_GET_SEND_MODE:
+ if (!(hardware.features & LIRC_CAN_SEND_MASK))
+ return -ENOIOCTLCMD;
+
+ result = put_user(LIRC_SEND2MODE
+ (hardware.features & LIRC_CAN_SEND_MASK),
+ (unsigned long *) arg);
+ if (result)
+ return result;
+ break;
+
+ case LIRC_SET_SEND_MODE:
+ if (!(hardware.features&LIRC_CAN_SEND_MASK))
+ return -ENOIOCTLCMD;
+
+ result = get_user(value, (unsigned long *)arg);
+ if (result)
+ return result;
+ break;
+
+ case LIRC_GET_LENGTH:
+ return -ENOSYS;
+ break;
+
+ case LIRC_SET_SEND_DUTY_CYCLE:
+ dprintk(KERN_WARNING LIRC_DRIVER_NAME
+ ": SET_SEND_DUTY_CYCLE\n");
+
+ if (!(hardware.features&LIRC_CAN_SET_SEND_DUTY_CYCLE))
+ return -ENOIOCTLCMD;
+
+ result = get_user(ivalue, (unsigned int *)arg);
+ if (result)
+ return result;
+ if (ivalue <= 0 || ivalue > 100)
+ return -EINVAL;
+
+ /* TODO: */
+ dprintk(LIRC_DRIVER_NAME
+ ": set_send_duty_cycle not yet supported\n");
+
+ return 0;
+ break;
+
+ case LIRC_SET_SEND_CARRIER:
+ dprintk(KERN_WARNING LIRC_DRIVER_NAME ": SET_SEND_CARRIER\n");
+
+ if (!(hardware.features & LIRC_CAN_SET_SEND_CARRIER))
+ return -ENOIOCTLCMD;
+
+ result = get_user(ivalue, (unsigned int *)arg);
+ if (result)
+ return result;
+ if (ivalue > 500000 || ivalue < 24000)
+ return -EINVAL;
+ if (ivalue != freq) {
+ freq = ivalue;
+ set_freq();
+ }
+ return 0;
+ break;
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+ return 0;
+}
+
+static struct file_operations lirc_fops = {
+ .write = lirc_write,
+};
+
+static struct lirc_plugin plugin = {
+ .name = LIRC_DRIVER_NAME,
+ .minor = -1,
+ .code_length = 1,
+ .sample_rate = 20,
+ .data = NULL,
+ .add_to_buf = add_to_buf,
+ .get_queue = NULL,
+ .rbuf = &rbuf,
+ .set_use_inc = set_use_inc,
+ .set_use_dec = set_use_dec,
+ .ioctl = lirc_ioctl,
+ .fops = &lirc_fops,
+ .dev = NULL,
+ .owner = THIS_MODULE,
+};
+
+#ifdef MODULE
+
+MODULE_AUTHOR("Evelyn Yeung, Matt Bodkin");
+MODULE_DESCRIPTION("InnovationOne driver for "
+ "CommandIR USB infrared transceiver");
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("GPL");
+#endif
+
+module_param(debug, bool, 0644);
+MODULE_PARM_DESC(debug, "Enable debugging messages");
+
+
+int init_module(void)
+{
+ plugin.features = hardware.features;
+ plugin.minor = lirc_register_plugin(&plugin);
+ if (plugin.minor < 0) {
+ printk(KERN_ERR LIRC_DRIVER_NAME
+ ": register_chrdev failed!\n");
+ return -EIO;
+ }
+ set_freq();
+ return 0;
+}
+
+void cleanup_module(void)
+{
+ lirc_unregister_plugin(plugin.minor);
+ printk(KERN_INFO LIRC_DRIVER_NAME ": module removed\n");
+}
+
+#endif
+
+
diff --git a/drivers/input/lirc/lirc_cmdir.h b/drivers/input/lirc/lirc_cmdir.h
new file mode 100644
index 0000000..f2400c3
--- /dev/null
+++ b/drivers/input/lirc/lirc_cmdir.h
@@ -0,0 +1,25 @@
+/*
+ * lirc_cmdir.h
+ */
+
+#ifndef LIRC_CMDIR_H
+#define LIRC_CMDIR_H
+
+#define ON 1
+#define OFF 0
+
+/* transmitter channel control */
+#define MAX_CHANNELS 32
+
+/* CommandIR control codes */
+#define MCU_CTRL_SIZE 3
+#define FREQ_HEADER 2
+#define TX_HEADER 7
+#define TX_HEADER_NEW 8
+
+extern int cmdir_write(unsigned char *buffer, int count,
+ void *callback_fct, int u);
+extern ssize_t cmdir_read(unsigned char *buffer, size_t count);
+extern int set_tx_channels(unsigned int next_tx);
+
+#endif
--
1.6.0.1
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