| /* |
| * USB HandSpring Visor, Palm m50x, and Sony Clie driver |
| * (supports all of the Palm OS USB devices) |
| * |
| * Copyright (C) 1999 - 2004 |
| * Greg Kroah-Hartman (greg@kroah.com) |
| * |
| * 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. |
| * |
| * See Documentation/usb/usb-serial.txt for more information on using this driver |
| * |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/tty.h> |
| #include <linux/tty_driver.h> |
| #include <linux/tty_flip.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/spinlock.h> |
| #include <asm/uaccess.h> |
| #include <linux/usb.h> |
| #include "usb-serial.h" |
| #include "visor.h" |
| |
| /* |
| * Version Information |
| */ |
| #define DRIVER_VERSION "v2.1" |
| #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>" |
| #define DRIVER_DESC "USB HandSpring Visor / Palm OS driver" |
| |
| /* function prototypes for a handspring visor */ |
| static int visor_open (struct usb_serial_port *port, struct file *filp); |
| static void visor_close (struct usb_serial_port *port, struct file *filp); |
| static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count); |
| static int visor_write_room (struct usb_serial_port *port); |
| static int visor_chars_in_buffer (struct usb_serial_port *port); |
| static void visor_throttle (struct usb_serial_port *port); |
| static void visor_unthrottle (struct usb_serial_port *port); |
| static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id); |
| static int visor_calc_num_ports(struct usb_serial *serial); |
| static void visor_shutdown (struct usb_serial *serial); |
| static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); |
| static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios); |
| static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs); |
| static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs); |
| static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs); |
| static int clie_3_5_startup (struct usb_serial *serial); |
| static int treo_attach (struct usb_serial *serial); |
| static int clie_5_attach (struct usb_serial *serial); |
| static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id); |
| static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id); |
| |
| /* Parameters that may be passed into the module. */ |
| static int debug; |
| static __u16 vendor; |
| static __u16 product; |
| |
| static struct usb_device_id id_table [] = { |
| { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_3_probe }, |
| { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { }, /* optional parameter entry */ |
| { } /* Terminating entry */ |
| }; |
| |
| static struct usb_device_id clie_id_5_table [] = { |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }, |
| { }, /* optional parameter entry */ |
| { } /* Terminating entry */ |
| }; |
| |
| static struct usb_device_id clie_id_3_5_table [] = { |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) }, |
| { } /* Terminating entry */ |
| }; |
| |
| static struct usb_device_id id_table_combined [] = { |
| { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) }, |
| { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) }, |
| { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID) }, |
| { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) }, |
| { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) }, |
| { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) }, |
| { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) }, |
| { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) }, |
| { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) }, |
| { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) }, |
| { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) }, |
| { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) }, |
| { }, /* optional parameter entry */ |
| { } /* Terminating entry */ |
| }; |
| |
| MODULE_DEVICE_TABLE (usb, id_table_combined); |
| |
| static struct usb_driver visor_driver = { |
| .owner = THIS_MODULE, |
| .name = "visor", |
| .probe = usb_serial_probe, |
| .disconnect = usb_serial_disconnect, |
| .id_table = id_table_combined, |
| }; |
| |
| /* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */ |
| static struct usb_serial_driver handspring_device = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "visor", |
| }, |
| .description = "Handspring Visor / Palm OS", |
| .id_table = id_table, |
| .num_interrupt_in = NUM_DONT_CARE, |
| .num_bulk_in = 2, |
| .num_bulk_out = 2, |
| .num_ports = 2, |
| .open = visor_open, |
| .close = visor_close, |
| .throttle = visor_throttle, |
| .unthrottle = visor_unthrottle, |
| .attach = treo_attach, |
| .probe = visor_probe, |
| .calc_num_ports = visor_calc_num_ports, |
| .shutdown = visor_shutdown, |
| .ioctl = visor_ioctl, |
| .set_termios = visor_set_termios, |
| .write = visor_write, |
| .write_room = visor_write_room, |
| .chars_in_buffer = visor_chars_in_buffer, |
| .write_bulk_callback = visor_write_bulk_callback, |
| .read_bulk_callback = visor_read_bulk_callback, |
| .read_int_callback = visor_read_int_callback, |
| }; |
| |
| /* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */ |
| static struct usb_serial_driver clie_5_device = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "clie_5", |
| }, |
| .description = "Sony Clie 5.0", |
| .id_table = clie_id_5_table, |
| .num_interrupt_in = NUM_DONT_CARE, |
| .num_bulk_in = 2, |
| .num_bulk_out = 2, |
| .num_ports = 2, |
| .open = visor_open, |
| .close = visor_close, |
| .throttle = visor_throttle, |
| .unthrottle = visor_unthrottle, |
| .attach = clie_5_attach, |
| .probe = visor_probe, |
| .calc_num_ports = visor_calc_num_ports, |
| .shutdown = visor_shutdown, |
| .ioctl = visor_ioctl, |
| .set_termios = visor_set_termios, |
| .write = visor_write, |
| .write_room = visor_write_room, |
| .chars_in_buffer = visor_chars_in_buffer, |
| .write_bulk_callback = visor_write_bulk_callback, |
| .read_bulk_callback = visor_read_bulk_callback, |
| .read_int_callback = visor_read_int_callback, |
| }; |
| |
| /* device info for the Sony Clie OS version 3.5 */ |
| static struct usb_serial_driver clie_3_5_device = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "clie_3.5", |
| }, |
| .description = "Sony Clie 3.5", |
| .id_table = clie_id_3_5_table, |
| .num_interrupt_in = 0, |
| .num_bulk_in = 1, |
| .num_bulk_out = 1, |
| .num_ports = 1, |
| .open = visor_open, |
| .close = visor_close, |
| .throttle = visor_throttle, |
| .unthrottle = visor_unthrottle, |
| .attach = clie_3_5_startup, |
| .ioctl = visor_ioctl, |
| .set_termios = visor_set_termios, |
| .write = visor_write, |
| .write_room = visor_write_room, |
| .chars_in_buffer = visor_chars_in_buffer, |
| .write_bulk_callback = visor_write_bulk_callback, |
| .read_bulk_callback = visor_read_bulk_callback, |
| }; |
| |
| struct visor_private { |
| spinlock_t lock; |
| int bytes_in; |
| int bytes_out; |
| int outstanding_urbs; |
| int throttled; |
| }; |
| |
| /* number of outstanding urbs to prevent userspace DoS from happening */ |
| #define URB_UPPER_LIMIT 42 |
| |
| static int stats; |
| |
| /****************************************************************************** |
| * Handspring Visor specific driver functions |
| ******************************************************************************/ |
| static int visor_open (struct usb_serial_port *port, struct file *filp) |
| { |
| struct usb_serial *serial = port->serial; |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| unsigned long flags; |
| int result = 0; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| if (!port->read_urb) { |
| /* this is needed for some brain dead Sony devices */ |
| dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n"); |
| return -ENODEV; |
| } |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->bytes_in = 0; |
| priv->bytes_out = 0; |
| priv->outstanding_urbs = 0; |
| priv->throttled = 0; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| /* |
| * Force low_latency on so that our tty_push actually forces the data |
| * through, otherwise it is scheduled, and with high data rates (like |
| * with OHCI) data can get lost. |
| */ |
| if (port->tty) |
| port->tty->low_latency = 1; |
| |
| /* 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, |
| visor_read_bulk_callback, port); |
| result = usb_submit_urb(port->read_urb, GFP_KERNEL); |
| if (result) { |
| dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", |
| __FUNCTION__, result); |
| goto exit; |
| } |
| |
| if (port->interrupt_in_urb) { |
| dbg("%s - adding interrupt input for treo", __FUNCTION__); |
| result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
| if (result) |
| dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n", |
| __FUNCTION__, result); |
| } |
| exit: |
| return result; |
| } |
| |
| |
| static void visor_close (struct usb_serial_port *port, struct file * filp) |
| { |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| unsigned char *transfer_buffer; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| /* shutdown our urbs */ |
| usb_kill_urb(port->read_urb); |
| if (port->interrupt_in_urb) |
| usb_kill_urb(port->interrupt_in_urb); |
| |
| /* Try to send shutdown message, if the device is gone, this will just fail. */ |
| transfer_buffer = kmalloc (0x12, GFP_KERNEL); |
| if (transfer_buffer) { |
| usb_control_msg (port->serial->dev, |
| usb_rcvctrlpipe(port->serial->dev, 0), |
| VISOR_CLOSE_NOTIFICATION, 0xc2, |
| 0x0000, 0x0000, |
| transfer_buffer, 0x12, 300); |
| kfree (transfer_buffer); |
| } |
| |
| if (stats) |
| dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n", |
| priv->bytes_in, priv->bytes_out); |
| } |
| |
| |
| static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count) |
| { |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| struct usb_serial *serial = port->serial; |
| struct urb *urb; |
| unsigned char *buffer; |
| unsigned long flags; |
| int status; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| if (priv->outstanding_urbs > URB_UPPER_LIMIT) { |
| spin_unlock_irqrestore(&priv->lock, flags); |
| dbg("%s - write limit hit\n", __FUNCTION__); |
| return 0; |
| } |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| buffer = kmalloc (count, GFP_ATOMIC); |
| if (!buffer) { |
| dev_err(&port->dev, "out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| urb = usb_alloc_urb(0, GFP_ATOMIC); |
| if (!urb) { |
| dev_err(&port->dev, "no more free urbs\n"); |
| kfree (buffer); |
| return -ENOMEM; |
| } |
| |
| memcpy (buffer, buf, count); |
| |
| usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); |
| |
| usb_fill_bulk_urb (urb, serial->dev, |
| usb_sndbulkpipe (serial->dev, |
| port->bulk_out_endpointAddress), |
| buffer, count, |
| visor_write_bulk_callback, port); |
| |
| /* send it down the pipe */ |
| status = usb_submit_urb(urb, GFP_ATOMIC); |
| if (status) { |
| dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n", |
| __FUNCTION__, status); |
| count = status; |
| kfree (buffer); |
| } else { |
| spin_lock_irqsave(&priv->lock, flags); |
| ++priv->outstanding_urbs; |
| priv->bytes_out += count; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| /* we are done with this urb, so let the host driver |
| * really free it when it is finished with it */ |
| usb_free_urb (urb); |
| |
| return count; |
| } |
| |
| |
| static int visor_write_room (struct usb_serial_port *port) |
| { |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| /* |
| * We really can take anything the user throws at us |
| * but let's pick a nice big number to tell the tty |
| * layer that we have lots of free space |
| */ |
| return 2048; |
| } |
| |
| |
| static int visor_chars_in_buffer (struct usb_serial_port *port) |
| { |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| /* |
| * We can't really account for how much data we |
| * have sent out, but hasn't made it through to the |
| * device, so just tell the tty layer that everything |
| * is flushed. |
| */ |
| return 0; |
| } |
| |
| |
| static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs) |
| { |
| struct usb_serial_port *port = (struct usb_serial_port *)urb->context; |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| unsigned long flags; |
| |
| /* free up the transfer buffer, as usb_free_urb() does not do this */ |
| kfree (urb->transfer_buffer); |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| if (urb->status) |
| dbg("%s - nonzero write bulk status received: %d", |
| __FUNCTION__, urb->status); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| --priv->outstanding_urbs; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| schedule_work(&port->work); |
| } |
| |
| |
| static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs) |
| { |
| struct usb_serial_port *port = (struct usb_serial_port *)urb->context; |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| unsigned char *data = urb->transfer_buffer; |
| struct tty_struct *tty; |
| unsigned long flags; |
| int i; |
| int throttled; |
| int result; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| if (urb->status) { |
| dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); |
| return; |
| } |
| |
| usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); |
| |
| tty = port->tty; |
| if (tty && urb->actual_length) { |
| for (i = 0; i < urb->actual_length ; ++i) { |
| /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */ |
| if(tty->flip.count >= TTY_FLIPBUF_SIZE) { |
| tty_flip_buffer_push(tty); |
| } |
| /* this doesn't actually push the data through unless tty->low_latency is set */ |
| tty_insert_flip_char(tty, data[i], 0); |
| } |
| tty_flip_buffer_push(tty); |
| } |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->bytes_in += urb->actual_length; |
| throttled = priv->throttled; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| /* Continue trying to always read if we should */ |
| if (!throttled) { |
| 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, |
| visor_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", __FUNCTION__, result); |
| } |
| return; |
| } |
| |
| static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs) |
| { |
| struct usb_serial_port *port = (struct usb_serial_port *)urb->context; |
| int result; |
| |
| switch (urb->status) { |
| case 0: |
| /* success */ |
| break; |
| case -ECONNRESET: |
| case -ENOENT: |
| case -ESHUTDOWN: |
| /* this urb is terminated, clean up */ |
| dbg("%s - urb shutting down with status: %d", |
| __FUNCTION__, urb->status); |
| return; |
| default: |
| dbg("%s - nonzero urb status received: %d", |
| __FUNCTION__, urb->status); |
| goto exit; |
| } |
| |
| /* |
| * This information is still unknown what it can be used for. |
| * If anyone has an idea, please let the author know... |
| * |
| * Rumor has it this endpoint is used to notify when data |
| * is ready to be read from the bulk ones. |
| */ |
| usb_serial_debug_data(debug, &port->dev, __FUNCTION__, |
| urb->actual_length, urb->transfer_buffer); |
| |
| exit: |
| result = usb_submit_urb (urb, GFP_ATOMIC); |
| if (result) |
| dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n", |
| __FUNCTION__, result); |
| } |
| |
| static void visor_throttle (struct usb_serial_port *port) |
| { |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| unsigned long flags; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->throttled = 1; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| |
| static void visor_unthrottle (struct usb_serial_port *port) |
| { |
| struct visor_private *priv = usb_get_serial_port_data(port); |
| unsigned long flags; |
| int result; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->throttled = 0; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| port->read_urb->dev = port->serial->dev; |
| result = usb_submit_urb(port->read_urb, GFP_ATOMIC); |
| if (result) |
| dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result); |
| } |
| |
| static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id) |
| { |
| struct device *dev = &serial->dev->dev; |
| struct visor_connection_info *connection_info; |
| unsigned char *transfer_buffer; |
| char *string; |
| int retval = 0; |
| int i; |
| int num_ports = 0; |
| |
| dbg("%s", __FUNCTION__); |
| |
| transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL); |
| if (!transfer_buffer) { |
| dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__, |
| sizeof(*connection_info)); |
| return -ENOMEM; |
| } |
| |
| /* send a get connection info request */ |
| retval = usb_control_msg (serial->dev, |
| usb_rcvctrlpipe(serial->dev, 0), |
| VISOR_GET_CONNECTION_INFORMATION, |
| 0xc2, 0x0000, 0x0000, transfer_buffer, |
| sizeof(*connection_info), 300); |
| if (retval < 0) { |
| dev_err(dev, "%s - error %d getting connection information\n", |
| __FUNCTION__, retval); |
| goto exit; |
| } |
| |
| if (retval == sizeof(*connection_info)) { |
| connection_info = (struct visor_connection_info *)transfer_buffer; |
| |
| num_ports = le16_to_cpu(connection_info->num_ports); |
| for (i = 0; i < num_ports; ++i) { |
| switch (connection_info->connections[i].port_function_id) { |
| case VISOR_FUNCTION_GENERIC: |
| string = "Generic"; |
| break; |
| case VISOR_FUNCTION_DEBUGGER: |
| string = "Debugger"; |
| break; |
| case VISOR_FUNCTION_HOTSYNC: |
| string = "HotSync"; |
| break; |
| case VISOR_FUNCTION_CONSOLE: |
| string = "Console"; |
| break; |
| case VISOR_FUNCTION_REMOTE_FILE_SYS: |
| string = "Remote File System"; |
| break; |
| default: |
| string = "unknown"; |
| break; |
| } |
| dev_info(dev, "%s: port %d, is for %s use\n", |
| serial->type->description, |
| connection_info->connections[i].port, string); |
| } |
| } |
| /* |
| * Handle devices that report invalid stuff here. |
| */ |
| if (num_ports == 0 || num_ports > 2) { |
| dev_warn (dev, "%s: No valid connect info available\n", |
| serial->type->description); |
| num_ports = 2; |
| } |
| |
| dev_info(dev, "%s: Number of ports: %d\n", serial->type->description, |
| num_ports); |
| |
| /* |
| * save off our num_ports info so that we can use it in the |
| * calc_num_ports callback |
| */ |
| usb_set_serial_data(serial, (void *)(long)num_ports); |
| |
| /* ask for the number of bytes available, but ignore the response as it is broken */ |
| retval = usb_control_msg (serial->dev, |
| usb_rcvctrlpipe(serial->dev, 0), |
| VISOR_REQUEST_BYTES_AVAILABLE, |
| 0xc2, 0x0000, 0x0005, transfer_buffer, |
| 0x02, 300); |
| if (retval < 0) |
| dev_err(dev, "%s - error %d getting bytes available request\n", |
| __FUNCTION__, retval); |
| retval = 0; |
| |
| exit: |
| kfree (transfer_buffer); |
| |
| return retval; |
| } |
| |
| static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id) |
| { |
| struct device *dev = &serial->dev->dev; |
| struct palm_ext_connection_info *connection_info; |
| unsigned char *transfer_buffer; |
| int retval; |
| |
| dbg("%s", __FUNCTION__); |
| |
| transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL); |
| if (!transfer_buffer) { |
| dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__, |
| sizeof(*connection_info)); |
| return -ENOMEM; |
| } |
| |
| retval = usb_control_msg (serial->dev, |
| usb_rcvctrlpipe(serial->dev, 0), |
| PALM_GET_EXT_CONNECTION_INFORMATION, |
| 0xc2, 0x0000, 0x0000, transfer_buffer, |
| sizeof (*connection_info), 300); |
| if (retval < 0) |
| dev_err(dev, "%s - error %d getting connection info\n", |
| __FUNCTION__, retval); |
| else |
| usb_serial_debug_data(debug, &serial->dev->dev, __FUNCTION__, |
| retval, transfer_buffer); |
| |
| kfree (transfer_buffer); |
| return 0; |
| } |
| |
| |
| static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id) |
| { |
| int retval = 0; |
| int (*startup) (struct usb_serial *serial, const struct usb_device_id *id); |
| |
| dbg("%s", __FUNCTION__); |
| |
| if (serial->dev->actconfig->desc.bConfigurationValue != 1) { |
| err("active config #%d != 1 ??", |
| serial->dev->actconfig->desc.bConfigurationValue); |
| return -ENODEV; |
| } |
| |
| if (id->driver_info) { |
| startup = (void *)id->driver_info; |
| retval = startup(serial, id); |
| } |
| |
| return retval; |
| } |
| |
| static int visor_calc_num_ports (struct usb_serial *serial) |
| { |
| int num_ports = (int)(long)(usb_get_serial_data(serial)); |
| |
| if (num_ports) |
| usb_set_serial_data(serial, NULL); |
| |
| return num_ports; |
| } |
| |
| static int generic_startup(struct usb_serial *serial) |
| { |
| struct visor_private *priv; |
| int i; |
| |
| for (i = 0; i < serial->num_ports; ++i) { |
| priv = kmalloc (sizeof(*priv), GFP_KERNEL); |
| if (!priv) |
| return -ENOMEM; |
| memset (priv, 0x00, sizeof(*priv)); |
| spin_lock_init(&priv->lock); |
| usb_set_serial_port_data(serial->port[i], priv); |
| } |
| return 0; |
| } |
| |
| static int clie_3_5_startup (struct usb_serial *serial) |
| { |
| struct device *dev = &serial->dev->dev; |
| int result; |
| u8 data; |
| |
| dbg("%s", __FUNCTION__); |
| |
| /* |
| * Note that PEG-300 series devices expect the following two calls. |
| */ |
| |
| /* get the config number */ |
| result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
| USB_REQ_GET_CONFIGURATION, USB_DIR_IN, |
| 0, 0, &data, 1, 3000); |
| if (result < 0) { |
| dev_err(dev, "%s: get config number failed: %d\n", __FUNCTION__, result); |
| return result; |
| } |
| if (result != 1) { |
| dev_err(dev, "%s: get config number bad return length: %d\n", __FUNCTION__, result); |
| return -EIO; |
| } |
| |
| /* get the interface number */ |
| result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
| USB_REQ_GET_INTERFACE, |
| USB_DIR_IN | USB_RECIP_INTERFACE, |
| 0, 0, &data, 1, 3000); |
| if (result < 0) { |
| dev_err(dev, "%s: get interface number failed: %d\n", __FUNCTION__, result); |
| return result; |
| } |
| if (result != 1) { |
| dev_err(dev, "%s: get interface number bad return length: %d\n", __FUNCTION__, result); |
| return -EIO; |
| } |
| |
| return generic_startup(serial); |
| } |
| |
| static int treo_attach (struct usb_serial *serial) |
| { |
| struct usb_serial_port *swap_port; |
| |
| /* Only do this endpoint hack for the Handspring devices with |
| * interrupt in endpoints, which for now are the Treo devices. */ |
| if (!((le16_to_cpu(serial->dev->descriptor.idVendor) == HANDSPRING_VENDOR_ID) || |
| (le16_to_cpu(serial->dev->descriptor.idVendor) == KYOCERA_VENDOR_ID)) || |
| (serial->num_interrupt_in == 0)) |
| goto generic_startup; |
| |
| dbg("%s", __FUNCTION__); |
| |
| /* |
| * It appears that Treos and Kyoceras want to use the |
| * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint, |
| * so let's swap the 1st and 2nd bulk in and interrupt endpoints. |
| * Note that swapping the bulk out endpoints would break lots of |
| * apps that want to communicate on the second port. |
| */ |
| #define COPY_PORT(dest, src) \ |
| dest->read_urb = src->read_urb; \ |
| dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress; \ |
| dest->bulk_in_buffer = src->bulk_in_buffer; \ |
| dest->interrupt_in_urb = src->interrupt_in_urb; \ |
| dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress; \ |
| dest->interrupt_in_buffer = src->interrupt_in_buffer; |
| |
| swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL); |
| if (!swap_port) |
| return -ENOMEM; |
| COPY_PORT(swap_port, serial->port[0]); |
| COPY_PORT(serial->port[0], serial->port[1]); |
| COPY_PORT(serial->port[1], swap_port); |
| kfree(swap_port); |
| |
| generic_startup: |
| return generic_startup(serial); |
| } |
| |
| static int clie_5_attach (struct usb_serial *serial) |
| { |
| dbg("%s", __FUNCTION__); |
| |
| /* TH55 registers 2 ports. |
| Communication in from the UX50/TH55 uses bulk_in_endpointAddress from port 0 |
| Communication out to the UX50/TH55 uses bulk_out_endpointAddress from port 1 |
| |
| Lets do a quick and dirty mapping |
| */ |
| |
| /* some sanity check */ |
| if (serial->num_ports < 2) |
| return -1; |
| |
| /* port 0 now uses the modified endpoint Address */ |
| serial->port[0]->bulk_out_endpointAddress = serial->port[1]->bulk_out_endpointAddress; |
| |
| return generic_startup(serial); |
| } |
| |
| static void visor_shutdown (struct usb_serial *serial) |
| { |
| dbg("%s", __FUNCTION__); |
| } |
| |
| static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) |
| { |
| dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd); |
| |
| return -ENOIOCTLCMD; |
| } |
| |
| |
| /* This function is all nice and good, but we don't change anything based on it :) */ |
| static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios) |
| { |
| unsigned int cflag; |
| |
| dbg("%s - port %d", __FUNCTION__, port->number); |
| |
| if ((!port->tty) || (!port->tty->termios)) { |
| dbg("%s - no tty structures", __FUNCTION__); |
| return; |
| } |
| |
| cflag = port->tty->termios->c_cflag; |
| /* check that they really want us to change something */ |
| if (old_termios) { |
| if ((cflag == old_termios->c_cflag) && |
| (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) { |
| dbg("%s - nothing to change...", __FUNCTION__); |
| return; |
| } |
| } |
| |
| /* get the byte size */ |
| switch (cflag & CSIZE) { |
| case CS5: dbg("%s - data bits = 5", __FUNCTION__); break; |
| case CS6: dbg("%s - data bits = 6", __FUNCTION__); break; |
| case CS7: dbg("%s - data bits = 7", __FUNCTION__); break; |
| default: |
| case CS8: dbg("%s - data bits = 8", __FUNCTION__); break; |
| } |
| |
| /* determine the parity */ |
| if (cflag & PARENB) |
| if (cflag & PARODD) |
| dbg("%s - parity = odd", __FUNCTION__); |
| else |
| dbg("%s - parity = even", __FUNCTION__); |
| else |
| dbg("%s - parity = none", __FUNCTION__); |
| |
| /* figure out the stop bits requested */ |
| if (cflag & CSTOPB) |
| dbg("%s - stop bits = 2", __FUNCTION__); |
| else |
| dbg("%s - stop bits = 1", __FUNCTION__); |
| |
| |
| /* figure out the flow control settings */ |
| if (cflag & CRTSCTS) |
| dbg("%s - RTS/CTS is enabled", __FUNCTION__); |
| else |
| dbg("%s - RTS/CTS is disabled", __FUNCTION__); |
| |
| /* determine software flow control */ |
| if (I_IXOFF(port->tty)) |
| dbg("%s - XON/XOFF is enabled, XON = %2x, XOFF = %2x", |
| __FUNCTION__, START_CHAR(port->tty), STOP_CHAR(port->tty)); |
| else |
| dbg("%s - XON/XOFF is disabled", __FUNCTION__); |
| |
| /* get the baud rate wanted */ |
| dbg("%s - baud rate = %d", __FUNCTION__, tty_get_baud_rate(port->tty)); |
| |
| return; |
| } |
| |
| |
| static int __init visor_init (void) |
| { |
| int i, retval; |
| /* Only if parameters were passed to us */ |
| if ((vendor>0) && (product>0)) { |
| struct usb_device_id usb_dev_temp[]= |
| {{USB_DEVICE(vendor, product), |
| .driver_info = (kernel_ulong_t)&palm_os_4_probe }}; |
| |
| /* Find the last entry in id_table */ |
| for (i=0; ; i++) { |
| if (id_table[i].idVendor==0) { |
| id_table[i] = usb_dev_temp[0]; |
| break; |
| } |
| } |
| /* Find the last entry in id_table_combined */ |
| for (i=0; ; i++) { |
| if (id_table_combined[i].idVendor==0) { |
| id_table_combined[i] = usb_dev_temp[0]; |
| break; |
| } |
| } |
| info("Untested USB device specified at time of module insertion"); |
| info("Warning: This is not guaranteed to work"); |
| info("Using a newer kernel is preferred to this method"); |
| info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x", |
| vendor, product); |
| } |
| retval = usb_serial_register(&handspring_device); |
| if (retval) |
| goto failed_handspring_register; |
| retval = usb_serial_register(&clie_3_5_device); |
| if (retval) |
| goto failed_clie_3_5_register; |
| retval = usb_serial_register(&clie_5_device); |
| if (retval) |
| goto failed_clie_5_register; |
| retval = usb_register(&visor_driver); |
| if (retval) |
| goto failed_usb_register; |
| info(DRIVER_DESC " " DRIVER_VERSION); |
| |
| return 0; |
| failed_usb_register: |
| usb_serial_deregister(&clie_5_device); |
| failed_clie_5_register: |
| usb_serial_deregister(&clie_3_5_device); |
| failed_clie_3_5_register: |
| usb_serial_deregister(&handspring_device); |
| failed_handspring_register: |
| return retval; |
| } |
| |
| |
| static void __exit visor_exit (void) |
| { |
| usb_deregister (&visor_driver); |
| usb_serial_deregister (&handspring_device); |
| usb_serial_deregister (&clie_3_5_device); |
| usb_serial_deregister (&clie_5_device); |
| } |
| |
| |
| module_init(visor_init); |
| module_exit(visor_exit); |
| |
| MODULE_AUTHOR( DRIVER_AUTHOR ); |
| MODULE_DESCRIPTION( DRIVER_DESC ); |
| MODULE_LICENSE("GPL"); |
| |
| module_param(debug, bool, S_IRUGO | S_IWUSR); |
| MODULE_PARM_DESC(debug, "Debug enabled or not"); |
| module_param(stats, bool, S_IRUGO | S_IWUSR); |
| MODULE_PARM_DESC(stats, "Enables statistics or not"); |
| |
| module_param(vendor, ushort, 0); |
| MODULE_PARM_DESC(vendor, "User specified vendor ID"); |
| module_param(product, ushort, 0); |
| MODULE_PARM_DESC(product, "User specified product ID"); |
| |