diff options
| -rw-r--r-- | drivers/usb/serial/ipw.c | 128 |
1 files changed, 4 insertions, 124 deletions
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index 585ec1e237b6..ca77e88836bd 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -34,7 +34,6 @@ * DCD, DTR, RTS, CTS which are currently faked. * It's good enough for PPP at this point. It's based off all kinds of * code found in usb/serial and usb/class - * */ #include <linux/kernel.h> @@ -52,7 +51,7 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.3" +#define DRIVER_VERSION "v0.4" #define DRIVER_AUTHOR "Roelf Diedericks" #define DRIVER_DESC "IPWireless tty driver" @@ -65,8 +64,6 @@ /* Message sizes */ #define EVENT_BUFFER_SIZE 0xFF #define CHAR2INT16(c1, c0) (((u32)((c1) & 0xff) << 8) + (u32)((c0) & 0xff)) -#define NUM_BULK_URBS 24 -#define NUM_CONTROL_URBS 16 /* vendor/product pairs that are known work with this driver*/ #define IPW_VID 0x0bc3 @@ -151,47 +148,6 @@ static struct usb_driver usb_ipw_driver = { static int debug; -static void ipw_read_bulk_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - unsigned char *data = urb->transfer_buffer; - struct tty_struct *tty; - int result; - int status = urb->status; - - dbg("%s - port %d", __func__, port->number); - - if (status) { - dbg("%s - nonzero read bulk status received: %d", - __func__, status); - return; - } - - usb_serial_debug_data(debug, &port->dev, __func__, - urb->actual_length, data); - - tty = tty_port_tty_get(&port->port); - if (tty && urb->actual_length) { - tty_insert_flip_string(tty, data, urb->actual_length); - tty_flip_buffer_push(tty); - } - tty_kref_put(tty); - - /* 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, - ipw_read_bulk_callback, port); - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); - return; -} - static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port) { struct usb_device *dev = port->serial->dev; @@ -229,15 +185,7 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port) /*--2: Start reading from the device */ dbg("%s: setting up bulk read callback", __func__); - usb_fill_bulk_urb(port->read_urb, dev, - usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), - port->bulk_in_buffer, - port->bulk_in_size, - ipw_read_bulk_callback, port); - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result < 0) - dbg("%s - usb_submit_urb(read bulk) failed with status %d", - __func__, result); + usb_serial_generic_open(tty, port); /*--3: Tell the modem to open the floodgates on the rx bulk channel */ dbg("%s:asking modem for RxRead (RXBULK_ON)", __func__); @@ -337,72 +285,7 @@ static void ipw_close(struct usb_serial_port *port) dev_err(&port->dev, "Disabling bulk RxRead failed (error = %d)\n", result); - /* shutdown any in-flight urbs that we know about */ - usb_kill_urb(port->read_urb); - usb_kill_urb(port->write_urb); -} - -static void ipw_write_bulk_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - int status = urb->status; - - dbg("%s", __func__); - - port->write_urb_busy = 0; - - if (status) - dbg("%s - nonzero write bulk status received: %d", - __func__, status); - - usb_serial_port_softint(port); -} - -static int ipw_write(struct tty_struct *tty, struct usb_serial_port *port, - const unsigned char *buf, int count) -{ - struct usb_device *dev = port->serial->dev; - int ret; - - dbg("%s: TOP: count=%d, in_interrupt=%ld", __func__, - count, in_interrupt()); - - if (count == 0) { - dbg("%s - write request of 0 bytes", __func__); - return 0; - } - - spin_lock_bh(&port->lock); - if (port->write_urb_busy) { - spin_unlock_bh(&port->lock); - dbg("%s - already writing", __func__); - return 0; - } - port->write_urb_busy = 1; - spin_unlock_bh(&port->lock); - - count = min(count, port->bulk_out_size); - memcpy(port->bulk_out_buffer, buf, count); - - dbg("%s count now:%d", __func__, count); - - usb_fill_bulk_urb(port->write_urb, dev, - usb_sndbulkpipe(dev, port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, - count, - ipw_write_bulk_callback, - port); - - ret = usb_submit_urb(port->write_urb, GFP_ATOMIC); - if (ret != 0) { - port->write_urb_busy = 0; - dbg("%s - usb_submit_urb(write bulk) failed with error = %d", - __func__, ret); - return ret; - } - - dbg("%s returning %d", __func__, count); - return count; + usb_serial_generic_close(port); } static struct usb_serial_driver ipw_device = { @@ -411,15 +294,12 @@ static struct usb_serial_driver ipw_device = { .name = "ipw", }, .description = "IPWireless converter", - .usb_driver = &usb_ipw_driver, + .usb_driver = &usb_ipw_driver, .id_table = usb_ipw_ids, .num_ports = 1, .open = ipw_open, .close = ipw_close, .dtr_rts = ipw_dtr_rts, - .write = ipw_write, - .write_bulk_callback = ipw_write_bulk_callback, - .read_bulk_callback = ipw_read_bulk_callback, }; |