X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=drivers%2Fusb%2Fserial%2Fipaq.c;h=c4aa90489b402d759a35da9c6c0194e09bc18ff5;hb=f10f9dd87161b70da6ec3d257c1f01a6ac02536f;hp=d9fb3768a2d7b1ba869e4275bcc6ec9d29d1ed2c;hpb=49997d75152b3d23c53b0fa730599f2f74c92c65;p=karo-tx-linux.git diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index d9fb3768a2d7..c4aa90489b40 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -53,7 +53,7 @@ #include #include #include -#include +#include #include #include #include "ipaq.h" @@ -74,19 +74,20 @@ static int connect_retries = KP_RETRIES; static int initial_wait; /* Function prototypes for an ipaq */ -static int ipaq_open (struct usb_serial_port *port, struct file *filp); -static void ipaq_close (struct usb_serial_port *port, struct file *filp); -static int ipaq_startup (struct usb_serial *serial); -static void ipaq_shutdown (struct usb_serial *serial); -static int ipaq_write(struct usb_serial_port *port, const unsigned char *buf, - int count); -static int ipaq_write_bulk(struct usb_serial_port *port, const unsigned char *buf, - int count); +static int ipaq_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static void ipaq_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static int ipaq_startup(struct usb_serial *serial); +static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count); +static int ipaq_write_bulk(struct usb_serial_port *port, + const unsigned char *buf, int count); static void ipaq_write_gather(struct usb_serial_port *port); -static void ipaq_read_bulk_callback (struct urb *urb); +static void ipaq_read_bulk_callback(struct urb *urb); static void ipaq_write_bulk_callback(struct urb *urb); -static int ipaq_write_room(struct usb_serial_port *port); -static int ipaq_chars_in_buffer(struct usb_serial_port *port); +static int ipaq_write_room(struct tty_struct *tty); +static int ipaq_chars_in_buffer(struct tty_struct *tty); static void ipaq_destroy_lists(struct usb_serial_port *port); @@ -550,7 +551,7 @@ static struct usb_device_id ipaq_id_table [] = { { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, ipaq_id_table); +MODULE_DEVICE_TABLE(usb, ipaq_id_table); static struct usb_driver ipaq_driver = { .name = "ipaq", @@ -579,7 +580,6 @@ static struct usb_serial_driver ipaq_device = { .open = ipaq_open, .close = ipaq_close, .attach = ipaq_startup, - .shutdown = ipaq_shutdown, .write = ipaq_write, .write_room = ipaq_write_room, .chars_in_buffer = ipaq_chars_in_buffer, @@ -591,7 +591,8 @@ static spinlock_t write_list_lock; static int bytes_in; static int bytes_out; -static int ipaq_open(struct usb_serial_port *port, struct file *filp) +static int ipaq_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; struct ipaq_private *priv; @@ -617,9 +618,9 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) for (i = 0; i < URBDATA_QUEUE_MAX / PACKET_SIZE; i++) { pkt = kmalloc(sizeof(struct ipaq_packet), GFP_KERNEL); - if (pkt == NULL) { + if (pkt == NULL) goto enomem; - } + pkt->data = kmalloc(PACKET_SIZE, GFP_KERNEL); if (pkt->data == NULL) { kfree(pkt); @@ -632,28 +633,27 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) priv->free_len += PACKET_SIZE; } - /* - * Force low latency on. This will immediately push data to the line - * discipline instead of queueing. - */ - - port->tty->low_latency = 1; - port->tty->raw = 1; - port->tty->real_raw = 1; - + if (tty) { + /* FIXME: These two are bogus */ + tty->raw = 1; + tty->real_raw = 1; + } /* * Lose the small buffers usbserial provides. Make larger ones. */ kfree(port->bulk_in_buffer); kfree(port->bulk_out_buffer); + /* make sure the generic serial code knows */ + port->bulk_out_buffer = NULL; + port->bulk_in_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL); - if (port->bulk_in_buffer == NULL) { - port->bulk_out_buffer = NULL; /* prevent double free */ + if (port->bulk_in_buffer == NULL) goto enomem; - } + port->bulk_out_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL); if (port->bulk_out_buffer == NULL) { + /* the buffer is useless, free it */ kfree(port->bulk_in_buffer); port->bulk_in_buffer = NULL; goto enomem; @@ -661,8 +661,9 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) port->read_urb->transfer_buffer = port->bulk_in_buffer; port->write_urb->transfer_buffer = port->bulk_out_buffer; port->read_urb->transfer_buffer_length = URBDATA_SIZE; - port->bulk_out_size = port->write_urb->transfer_buffer_length = URBDATA_SIZE; - + port->bulk_out_size = port->write_urb->transfer_buffer_length + = URBDATA_SIZE; + msleep(1000*initial_wait); /* @@ -691,13 +692,15 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) /* Start reading from the device */ usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, - ipaq_read_bulk_callback, port); + usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + ipaq_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) { - err("%s - failed submitting read urb, error %d", __func__, result); + err("%s - failed submitting read urb, error %d", + __func__, result); goto error; } @@ -713,12 +716,13 @@ error: } -static void ipaq_close(struct usb_serial_port *port, struct file *filp) +static void ipaq_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct ipaq_private *priv = usb_get_serial_port_data(port); dbg("%s - port %d", __func__, port->number); - + /* * shut down bulk read and write */ @@ -728,7 +732,8 @@ static void ipaq_close(struct usb_serial_port *port, struct file *filp) kfree(priv); usb_set_serial_port_data(port, NULL); - /* Uncomment the following line if you want to see some statistics in your syslog */ + /* Uncomment the following line if you want to see some statistics + * in your syslog */ /* info ("Bytes In = %d Bytes Out = %d", bytes_in, bytes_out); */ } @@ -748,9 +753,10 @@ static void ipaq_read_bulk_callback(struct urb *urb) return; } - usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); + usb_serial_debug_data(debug, &port->dev, __func__, + urb->actual_length, data); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -759,18 +765,20 @@ static void ipaq_read_bulk_callback(struct urb *urb) } /* Continue trying to always read */ - usb_fill_bulk_urb(port->read_urb, port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, - ipaq_read_bulk_callback, port); + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + ipaq_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", __func__, result); + err("%s - failed resubmitting read urb, error %d", + __func__, result); return; } -static int ipaq_write(struct usb_serial_port *port, const unsigned char *buf, - int count) +static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { const unsigned char *current_position = buf; int bytes_sent = 0; @@ -780,9 +788,8 @@ static int ipaq_write(struct usb_serial_port *port, const unsigned char *buf, while (count > 0) { transfer_size = min(count, PACKET_SIZE); - if (ipaq_write_bulk(port, current_position, transfer_size)) { + if (ipaq_write_bulk(port, current_position, transfer_size)) break; - } current_position += transfer_size; bytes_sent += transfer_size; count -= transfer_size; @@ -790,10 +797,10 @@ static int ipaq_write(struct usb_serial_port *port, const unsigned char *buf, } return bytes_sent; -} +} -static int ipaq_write_bulk(struct usb_serial_port *port, const unsigned char *buf, - int count) +static int ipaq_write_bulk(struct usb_serial_port *port, + const unsigned char *buf, int count) { struct ipaq_private *priv = usb_get_serial_port_data(port); struct ipaq_packet *pkt = NULL; @@ -830,9 +837,9 @@ static int ipaq_write_bulk(struct usb_serial_port *port, const unsigned char *bu ipaq_write_gather(port); spin_unlock_irqrestore(&write_list_lock, flags); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); - if (result) { - err("%s - failed submitting write urb, error %d", __func__, result); - } + if (result) + err("%s - failed submitting write urb, error %d", + __func__, result); } else { spin_unlock_irqrestore(&write_list_lock, flags); } @@ -859,16 +866,15 @@ static void ipaq_write_gather(struct usb_serial_port *port) list_move(&pkt->list, &priv->freelist); priv->free_len += PACKET_SIZE; } - if (room == 0) { + if (room == 0) break; - } } count = URBDATA_SIZE - room; - usb_fill_bulk_urb(port->write_urb, serial->dev, - usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, count, ipaq_write_bulk_callback, - port); + usb_fill_bulk_urb(port->write_urb, serial->dev, + usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, count, + ipaq_write_bulk_callback, port); return; } @@ -893,9 +899,9 @@ static void ipaq_write_bulk_callback(struct urb *urb) ipaq_write_gather(port); spin_unlock_irqrestore(&write_list_lock, flags); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); - if (result) { - err("%s - failed submitting write urb, error %d", __func__, result); - } + if (result) + err("%s - failed submitting write urb, error %d", + __func__, result); } else { priv->active = 0; spin_unlock_irqrestore(&write_list_lock, flags); @@ -904,16 +910,18 @@ static void ipaq_write_bulk_callback(struct urb *urb) usb_serial_port_softint(port); } -static int ipaq_write_room(struct usb_serial_port *port) +static int ipaq_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ipaq_private *priv = usb_get_serial_port_data(port); dbg("%s - freelen %d", __func__, priv->free_len); return priv->free_len; } -static int ipaq_chars_in_buffer(struct usb_serial_port *port) +static int ipaq_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ipaq_private *priv = usb_get_serial_port_data(port); dbg("%s - queuelen %d", __func__, priv->queue_len); @@ -944,12 +952,7 @@ static int ipaq_startup(struct usb_serial *serial) serial->dev->actconfig->desc.bConfigurationValue); return -ENODEV; } - return usb_reset_configuration (serial->dev); -} - -static void ipaq_shutdown(struct usb_serial *serial) -{ - dbg("%s", __func__); + return usb_reset_configuration(serial->dev); } static int __init ipaq_init(void) @@ -957,7 +960,7 @@ static int __init ipaq_init(void) int retval; spin_lock_init(&write_list_lock); retval = usb_serial_register(&ipaq_device); - if (retval) + if (retval) goto failed_usb_serial_register; info(DRIVER_DESC " " DRIVER_VERSION); if (vendor) { @@ -967,7 +970,7 @@ static int __init ipaq_init(void) retval = usb_register(&ipaq_driver); if (retval) goto failed_usb_register; - + return 0; failed_usb_register: usb_serial_deregister(&ipaq_device); @@ -986,8 +989,8 @@ static void __exit ipaq_exit(void) module_init(ipaq_init); module_exit(ipaq_exit); -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); module_param(debug, bool, S_IRUGO | S_IWUSR); @@ -1000,7 +1003,9 @@ module_param(product, ushort, 0); MODULE_PARM_DESC(product, "User specified USB idProduct"); module_param(connect_retries, int, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(connect_retries, "Maximum number of connect retries (one second each)"); +MODULE_PARM_DESC(connect_retries, + "Maximum number of connect retries (one second each)"); module_param(initial_wait, int, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(initial_wait, "Time to wait before attempting a connection (in seconds)"); +MODULE_PARM_DESC(initial_wait, + "Time to wait before attempting a connection (in seconds)");