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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * USB HandSpring Visor, Palm m50x, and Sony Clie driver
3 * (supports all of the Palm OS USB devices)
4 *
5 * Copyright (C) 1999 - 2004
6 * Greg Kroah-Hartman (greg@kroah.com)
7 *
Greg Kroah-Hartman4d0dce32007-06-12 11:43:37 -07008 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation.
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 *
Alan Coxd60d4392008-07-22 11:12:15 +010012 * See Documentation/usb/usb-serial.txt for more information on using this
13 * driver
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 */
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <linux/kernel.h>
18#include <linux/errno.h>
19#include <linux/init.h>
20#include <linux/slab.h>
21#include <linux/tty.h>
22#include <linux/tty_driver.h>
23#include <linux/tty_flip.h>
24#include <linux/module.h>
25#include <linux/moduleparam.h>
26#include <linux/spinlock.h>
Alan Coxd60d4392008-07-22 11:12:15 +010027#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include <linux/usb.h>
Greg Kroah-Hartmana9698882006-07-11 21:22:58 -070029#include <linux/usb/serial.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "visor.h"
31
32/*
33 * Version Information
34 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
36#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
37
38/* function prototypes for a handspring visor */
Alan Coxa509a7e2009-09-19 13:13:26 -070039static int visor_open(struct tty_struct *tty, struct usb_serial_port *port);
Alan Cox335f8512009-06-11 12:26:29 +010040static void visor_close(struct usb_serial_port *port);
Alan Coxd60d4392008-07-22 11:12:15 +010041static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
42 const unsigned char *buf, int count);
43static int visor_write_room(struct tty_struct *tty);
44static void visor_throttle(struct tty_struct *tty);
45static void visor_unthrottle(struct tty_struct *tty);
46static int visor_probe(struct usb_serial *serial,
47 const struct usb_device_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070048static int visor_calc_num_ports(struct usb_serial *serial);
Alan Sternf9c99bb2009-06-02 11:53:55 -040049static void visor_release(struct usb_serial *serial);
Alan Coxd60d4392008-07-22 11:12:15 +010050static void visor_write_bulk_callback(struct urb *urb);
51static void visor_read_bulk_callback(struct urb *urb);
52static void visor_read_int_callback(struct urb *urb);
53static int clie_3_5_startup(struct usb_serial *serial);
54static int treo_attach(struct usb_serial *serial);
55static int clie_5_attach(struct usb_serial *serial);
56static int palm_os_3_probe(struct usb_serial *serial,
57 const struct usb_device_id *id);
58static int palm_os_4_probe(struct usb_serial *serial,
59 const struct usb_device_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
61/* Parameters that may be passed into the module. */
62static int debug;
63static __u16 vendor;
64static __u16 product;
65
66static struct usb_device_id id_table [] = {
67 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
68 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
69 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
70 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
71 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
72 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Hendrik Schweppe04d52462006-02-19 19:00:04 +010073 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
74 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
76 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
77 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
78 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
79 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
80 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
81 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
82 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
83 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
84 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
85 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
86 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
87 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
88 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
89 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
90 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
gregkh@suse.deac21e9f2005-04-18 17:39:20 -070091 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
92 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
94 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
96 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
97 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
98 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
99 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
100 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
101 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
102 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
103 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
104 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
105 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
106 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
107 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
108 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Maximilian Attemsc8ba84a2007-08-04 10:19:41 +0200109 { USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
110 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Alan Coxd60d4392008-07-22 11:12:15 +0100111 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Alan Coxd60d4392008-07-22 11:12:15 +0100113 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Larry Battraw115c1ce2005-04-18 17:39:20 -0700115 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
116 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Alan Coxd60d4392008-07-22 11:12:15 +0100117 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
119 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
120 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
121 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
122 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
123 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
124 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
125 { }, /* optional parameter entry */
126 { } /* Terminating entry */
127};
128
129static struct usb_device_id clie_id_5_table [] = {
130 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
131 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
132 { }, /* optional parameter entry */
133 { } /* Terminating entry */
134};
135
136static struct usb_device_id clie_id_3_5_table [] = {
137 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
138 { } /* Terminating entry */
139};
140
141static struct usb_device_id id_table_combined [] = {
142 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
143 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
144 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
Hendrik Schweppe04d52462006-02-19 19:00:04 +0100145 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
147 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
148 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
149 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
150 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
151 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
152 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
153 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
gregkh@suse.deac21e9f2005-04-18 17:39:20 -0700154 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
157 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
158 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
159 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
160 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
161 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
162 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
163 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
164 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
165 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
166 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
Larry Battraw115c1ce2005-04-18 17:39:20 -0700167 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
169 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
170 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
171 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
172 { }, /* optional parameter entry */
173 { } /* Terminating entry */
174};
175
Alan Coxd60d4392008-07-22 11:12:15 +0100176MODULE_DEVICE_TABLE(usb, id_table_combined);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
178static struct usb_driver visor_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 .name = "visor",
180 .probe = usb_serial_probe,
181 .disconnect = usb_serial_disconnect,
182 .id_table = id_table_combined,
Greg Kroah-Hartmanba9dc652005-11-16 13:41:28 -0800183 .no_dynamic_id = 1,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184};
185
Alan Coxd60d4392008-07-22 11:12:15 +0100186/* All of the device info needed for the Handspring Visor,
187 and Palm 4.0 devices */
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700188static struct usb_serial_driver handspring_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700189 .driver = {
190 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700191 .name = "visor",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700192 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700193 .description = "Handspring Visor / Palm OS",
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100194 .usb_driver = &visor_driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 .id_table = id_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 .num_ports = 2,
197 .open = visor_open,
198 .close = visor_close,
199 .throttle = visor_throttle,
200 .unthrottle = visor_unthrottle,
201 .attach = treo_attach,
202 .probe = visor_probe,
203 .calc_num_ports = visor_calc_num_ports,
Alan Sternf9c99bb2009-06-02 11:53:55 -0400204 .release = visor_release,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 .write = visor_write,
206 .write_room = visor_write_room,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 .write_bulk_callback = visor_write_bulk_callback,
208 .read_bulk_callback = visor_read_bulk_callback,
209 .read_int_callback = visor_read_int_callback,
210};
211
212/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700213static struct usb_serial_driver clie_5_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700214 .driver = {
215 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700216 .name = "clie_5",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700217 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700218 .description = "Sony Clie 5.0",
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100219 .usb_driver = &visor_driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 .id_table = clie_id_5_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 .num_ports = 2,
222 .open = visor_open,
223 .close = visor_close,
224 .throttle = visor_throttle,
225 .unthrottle = visor_unthrottle,
226 .attach = clie_5_attach,
227 .probe = visor_probe,
228 .calc_num_ports = visor_calc_num_ports,
Alan Sternf9c99bb2009-06-02 11:53:55 -0400229 .release = visor_release,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 .write = visor_write,
231 .write_room = visor_write_room,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 .write_bulk_callback = visor_write_bulk_callback,
233 .read_bulk_callback = visor_read_bulk_callback,
234 .read_int_callback = visor_read_int_callback,
235};
236
237/* device info for the Sony Clie OS version 3.5 */
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700238static struct usb_serial_driver clie_3_5_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700239 .driver = {
240 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700241 .name = "clie_3.5",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700242 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700243 .description = "Sony Clie 3.5",
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100244 .usb_driver = &visor_driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 .id_table = clie_id_3_5_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 .num_ports = 1,
247 .open = visor_open,
248 .close = visor_close,
249 .throttle = visor_throttle,
250 .unthrottle = visor_unthrottle,
251 .attach = clie_3_5_startup,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 .write = visor_write,
253 .write_room = visor_write_room,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 .write_bulk_callback = visor_write_bulk_callback,
255 .read_bulk_callback = visor_read_bulk_callback,
256};
257
258struct visor_private {
259 spinlock_t lock;
260 int bytes_in;
261 int bytes_out;
262 int outstanding_urbs;
Oliver Neukumb308e742007-05-07 10:37:08 +0200263 unsigned char throttled;
264 unsigned char actually_throttled;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265};
266
267/* number of outstanding urbs to prevent userspace DoS from happening */
268#define URB_UPPER_LIMIT 42
269
270static int stats;
271
272/******************************************************************************
273 * Handspring Visor specific driver functions
274 ******************************************************************************/
Alan Coxa509a7e2009-09-19 13:13:26 -0700275static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276{
277 struct usb_serial *serial = port->serial;
278 struct visor_private *priv = usb_get_serial_port_data(port);
279 unsigned long flags;
280 int result = 0;
281
Harvey Harrison441b62c2008-03-03 16:08:34 -0800282 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
284 if (!port->read_urb) {
285 /* this is needed for some brain dead Sony devices */
286 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
287 return -ENODEV;
288 }
289
290 spin_lock_irqsave(&priv->lock, flags);
291 priv->bytes_in = 0;
292 priv->bytes_out = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 priv->throttled = 0;
294 spin_unlock_irqrestore(&priv->lock, flags);
295
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 /* Start reading from the device */
Alan Coxd60d4392008-07-22 11:12:15 +0100297 usb_fill_bulk_urb(port->read_urb, serial->dev,
298 usb_rcvbulkpipe(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 port->bulk_in_endpointAddress),
300 port->read_urb->transfer_buffer,
301 port->read_urb->transfer_buffer_length,
302 visor_read_bulk_callback, port);
303 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
304 if (result) {
Alan Coxd60d4392008-07-22 11:12:15 +0100305 dev_err(&port->dev,
306 "%s - failed submitting read urb, error %d\n",
307 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 goto exit;
309 }
Alan Coxd60d4392008-07-22 11:12:15 +0100310
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 if (port->interrupt_in_urb) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800312 dbg("%s - adding interrupt input for treo", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
314 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100315 dev_err(&port->dev,
316 "%s - failed submitting interrupt urb, error %d\n",
317 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 }
Alan Coxd60d4392008-07-22 11:12:15 +0100319exit:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 return result;
321}
322
323
Alan Cox335f8512009-06-11 12:26:29 +0100324static void visor_close(struct usb_serial_port *port)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325{
326 struct visor_private *priv = usb_get_serial_port_data(port);
327 unsigned char *transfer_buffer;
328
Harvey Harrison441b62c2008-03-03 16:08:34 -0800329 dbg("%s - port %d", __func__, port->number);
Alan Coxd60d4392008-07-22 11:12:15 +0100330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 /* shutdown our urbs */
332 usb_kill_urb(port->read_urb);
Mariusz Kozlowskibcb54a52006-11-08 15:36:55 +0100333 usb_kill_urb(port->interrupt_in_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100335 mutex_lock(&port->serial->disc_mutex);
336 if (!port->serial->disconnected) {
337 /* Try to send shutdown message, unless the device is gone */
Alan Coxd60d4392008-07-22 11:12:15 +0100338 transfer_buffer = kmalloc(0x12, GFP_KERNEL);
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100339 if (transfer_buffer) {
Alan Coxd60d4392008-07-22 11:12:15 +0100340 usb_control_msg(port->serial->dev,
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100341 usb_rcvctrlpipe(port->serial->dev, 0),
342 VISOR_CLOSE_NOTIFICATION, 0xc2,
343 0x0000, 0x0000,
344 transfer_buffer, 0x12, 300);
Alan Coxd60d4392008-07-22 11:12:15 +0100345 kfree(transfer_buffer);
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100346 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 }
Oliver Neukum95bef012008-01-22 13:56:18 +0100348 mutex_unlock(&port->serial->disc_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349
350 if (stats)
351 dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
352 priv->bytes_in, priv->bytes_out);
353}
354
355
Alan Cox95da3102008-07-22 11:09:07 +0100356static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
357 const unsigned char *buf, int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358{
359 struct visor_private *priv = usb_get_serial_port_data(port);
360 struct usb_serial *serial = port->serial;
361 struct urb *urb;
362 unsigned char *buffer;
363 unsigned long flags;
364 int status;
365
Harvey Harrison441b62c2008-03-03 16:08:34 -0800366 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
368 spin_lock_irqsave(&priv->lock, flags);
369 if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
370 spin_unlock_irqrestore(&priv->lock, flags);
Harvey Harrison441b62c2008-03-03 16:08:34 -0800371 dbg("%s - write limit hit\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 return 0;
373 }
Oliver Neukumb80349b2007-03-23 11:58:03 +0100374 priv->outstanding_urbs++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 spin_unlock_irqrestore(&priv->lock, flags);
376
Alan Coxd60d4392008-07-22 11:12:15 +0100377 buffer = kmalloc(count, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 if (!buffer) {
379 dev_err(&port->dev, "out of memory\n");
Oliver Neukumb80349b2007-03-23 11:58:03 +0100380 count = -ENOMEM;
381 goto error_no_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 }
383
384 urb = usb_alloc_urb(0, GFP_ATOMIC);
385 if (!urb) {
386 dev_err(&port->dev, "no more free urbs\n");
Oliver Neukumb80349b2007-03-23 11:58:03 +0100387 count = -ENOMEM;
388 goto error_no_urb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 }
390
Alan Coxd60d4392008-07-22 11:12:15 +0100391 memcpy(buffer, buf, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392
Harvey Harrison441b62c2008-03-03 16:08:34 -0800393 usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
Alan Coxd60d4392008-07-22 11:12:15 +0100395 usb_fill_bulk_urb(urb, serial->dev,
396 usb_sndbulkpipe(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 port->bulk_out_endpointAddress),
Alan Coxd60d4392008-07-22 11:12:15 +0100398 buffer, count,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 visor_write_bulk_callback, port);
400
401 /* send it down the pipe */
402 status = usb_submit_urb(urb, GFP_ATOMIC);
403 if (status) {
Alan Coxd60d4392008-07-22 11:12:15 +0100404 dev_err(&port->dev,
405 "%s - usb_submit_urb(write bulk) failed with status = %d\n",
406 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 count = status;
Oliver Neukumb80349b2007-03-23 11:58:03 +0100408 goto error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 } else {
410 spin_lock_irqsave(&priv->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 priv->bytes_out += count;
412 spin_unlock_irqrestore(&priv->lock, flags);
413 }
414
415 /* we are done with this urb, so let the host driver
416 * really free it when it is finished with it */
Oliver Neukumb80349b2007-03-23 11:58:03 +0100417 usb_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418
419 return count;
Oliver Neukumb80349b2007-03-23 11:58:03 +0100420error:
421 usb_free_urb(urb);
422error_no_urb:
423 kfree(buffer);
424error_no_buffer:
425 spin_lock_irqsave(&priv->lock, flags);
426 --priv->outstanding_urbs;
427 spin_unlock_irqrestore(&priv->lock, flags);
428 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429}
430
431
Alan Coxd60d4392008-07-22 11:12:15 +0100432static int visor_write_room(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433{
Alan Cox95da3102008-07-22 11:09:07 +0100434 struct usb_serial_port *port = tty->driver_data;
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700435 struct visor_private *priv = usb_get_serial_port_data(port);
436 unsigned long flags;
437
Harvey Harrison441b62c2008-03-03 16:08:34 -0800438 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439
440 /*
441 * We really can take anything the user throws at us
442 * but let's pick a nice big number to tell the tty
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700443 * layer that we have lots of free space, unless we don't.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 */
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700445
446 spin_lock_irqsave(&priv->lock, flags);
447 if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
448 spin_unlock_irqrestore(&priv->lock, flags);
Harvey Harrison441b62c2008-03-03 16:08:34 -0800449 dbg("%s - write limit hit\n", __func__);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700450 return 0;
451 }
452 spin_unlock_irqrestore(&priv->lock, flags);
453
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 return 2048;
455}
456
457
Alan Coxd60d4392008-07-22 11:12:15 +0100458static void visor_write_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459{
Ming Leicdc97792008-02-24 18:41:47 +0800460 struct usb_serial_port *port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 struct visor_private *priv = usb_get_serial_port_data(port);
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700462 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 unsigned long flags;
464
465 /* free up the transfer buffer, as usb_free_urb() does not do this */
Alan Coxd60d4392008-07-22 11:12:15 +0100466 kfree(urb->transfer_buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467
Harvey Harrison441b62c2008-03-03 16:08:34 -0800468 dbg("%s - port %d", __func__, port->number);
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700469
470 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 dbg("%s - nonzero write bulk status received: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800472 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
474 spin_lock_irqsave(&priv->lock, flags);
475 --priv->outstanding_urbs;
476 spin_unlock_irqrestore(&priv->lock, flags);
477
Pete Zaitcevcf2c7482006-05-22 21:58:49 -0700478 usb_serial_port_softint(port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479}
480
481
Alan Coxd60d4392008-07-22 11:12:15 +0100482static void visor_read_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483{
Ming Leicdc97792008-02-24 18:41:47 +0800484 struct usb_serial_port *port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485 struct visor_private *priv = usb_get_serial_port_data(port);
486 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700487 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 struct tty_struct *tty;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 int result;
Alan Cox4a90f092008-10-13 10:39:46 +0100490 int available_room = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491
Harvey Harrison441b62c2008-03-03 16:08:34 -0800492 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700494 if (status) {
495 dbg("%s - nonzero read bulk status received: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800496 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 return;
498 }
499
Alan Coxd60d4392008-07-22 11:12:15 +0100500 usb_serial_debug_data(debug, &port->dev, __func__,
501 urb->actual_length, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
Alan Cox4a90f092008-10-13 10:39:46 +0100503 if (urb->actual_length) {
504 tty = tty_port_tty_get(&port->port);
505 if (tty) {
506 available_room = tty_buffer_request_room(tty,
Alan Coxd60d4392008-07-22 11:12:15 +0100507 urb->actual_length);
Alan Cox4a90f092008-10-13 10:39:46 +0100508 if (available_room) {
509 tty_insert_flip_string(tty, data,
510 available_room);
511 tty_flip_buffer_push(tty);
512 }
513 tty_kref_put(tty);
Oliver Neukumb308e742007-05-07 10:37:08 +0200514 }
515 spin_lock(&priv->lock);
Oliver Neukum4c9fde92009-10-01 14:54:46 +0200516 if (tty)
517 priv->bytes_in += available_room;
Oliver Neukumb308e742007-05-07 10:37:08 +0200518
519 } else {
520 spin_lock(&priv->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522
523 /* Continue trying to always read if we should */
Oliver Neukumb308e742007-05-07 10:37:08 +0200524 if (!priv->throttled) {
Alan Coxd60d4392008-07-22 11:12:15 +0100525 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 usb_rcvbulkpipe(port->serial->dev,
Alan Coxd60d4392008-07-22 11:12:15 +0100527 port->bulk_in_endpointAddress),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528 port->read_urb->transfer_buffer,
529 port->read_urb->transfer_buffer_length,
530 visor_read_bulk_callback, port);
531 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
532 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100533 dev_err(&port->dev,
534 "%s - failed resubmitting read urb, error %d\n",
535 __func__, result);
536 } else
Oliver Neukumb308e742007-05-07 10:37:08 +0200537 priv->actually_throttled = 1;
Oliver Neukumb308e742007-05-07 10:37:08 +0200538 spin_unlock(&priv->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539}
540
Alan Coxd60d4392008-07-22 11:12:15 +0100541static void visor_read_int_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542{
Ming Leicdc97792008-02-24 18:41:47 +0800543 struct usb_serial_port *port = urb->context;
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700544 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 int result;
546
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700547 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 case 0:
549 /* success */
550 break;
551 case -ECONNRESET:
552 case -ENOENT:
553 case -ESHUTDOWN:
554 /* this urb is terminated, clean up */
555 dbg("%s - urb shutting down with status: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800556 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557 return;
558 default:
559 dbg("%s - nonzero urb status received: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800560 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 goto exit;
562 }
563
564 /*
565 * This information is still unknown what it can be used for.
566 * If anyone has an idea, please let the author know...
567 *
568 * Rumor has it this endpoint is used to notify when data
569 * is ready to be read from the bulk ones.
570 */
Harvey Harrison441b62c2008-03-03 16:08:34 -0800571 usb_serial_debug_data(debug, &port->dev, __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 urb->actual_length, urb->transfer_buffer);
573
574exit:
Alan Coxd60d4392008-07-22 11:12:15 +0100575 result = usb_submit_urb(urb, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100577 dev_err(&urb->dev->dev,
578 "%s - Error %d submitting interrupt urb\n",
579 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580}
581
Alan Coxd60d4392008-07-22 11:12:15 +0100582static void visor_throttle(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583{
Alan Cox95da3102008-07-22 11:09:07 +0100584 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 struct visor_private *priv = usb_get_serial_port_data(port);
586 unsigned long flags;
587
Harvey Harrison441b62c2008-03-03 16:08:34 -0800588 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 spin_lock_irqsave(&priv->lock, flags);
590 priv->throttled = 1;
591 spin_unlock_irqrestore(&priv->lock, flags);
592}
593
594
Alan Coxd60d4392008-07-22 11:12:15 +0100595static void visor_unthrottle(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596{
Alan Cox95da3102008-07-22 11:09:07 +0100597 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598 struct visor_private *priv = usb_get_serial_port_data(port);
599 unsigned long flags;
600 int result;
601
Harvey Harrison441b62c2008-03-03 16:08:34 -0800602 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 spin_lock_irqsave(&priv->lock, flags);
604 priv->throttled = 0;
Oliver Neukumb308e742007-05-07 10:37:08 +0200605 priv->actually_throttled = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 spin_unlock_irqrestore(&priv->lock, flags);
607
608 port->read_urb->dev = port->serial->dev;
609 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
610 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100611 dev_err(&port->dev,
612 "%s - failed submitting read urb, error %d\n",
613 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614}
615
Alan Coxd60d4392008-07-22 11:12:15 +0100616static int palm_os_3_probe(struct usb_serial *serial,
617 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618{
619 struct device *dev = &serial->dev->dev;
620 struct visor_connection_info *connection_info;
621 unsigned char *transfer_buffer;
622 char *string;
623 int retval = 0;
624 int i;
625 int num_ports = 0;
626
Harvey Harrison441b62c2008-03-03 16:08:34 -0800627 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Alan Coxd60d4392008-07-22 11:12:15 +0100629 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630 if (!transfer_buffer) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800631 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 sizeof(*connection_info));
633 return -ENOMEM;
634 }
635
636 /* send a get connection info request */
Alan Coxd60d4392008-07-22 11:12:15 +0100637 retval = usb_control_msg(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 usb_rcvctrlpipe(serial->dev, 0),
639 VISOR_GET_CONNECTION_INFORMATION,
640 0xc2, 0x0000, 0x0000, transfer_buffer,
641 sizeof(*connection_info), 300);
642 if (retval < 0) {
643 dev_err(dev, "%s - error %d getting connection information\n",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800644 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645 goto exit;
646 }
647
648 if (retval == sizeof(*connection_info)) {
Alan Coxd60d4392008-07-22 11:12:15 +0100649 connection_info = (struct visor_connection_info *)
650 transfer_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
652 num_ports = le16_to_cpu(connection_info->num_ports);
653 for (i = 0; i < num_ports; ++i) {
Alan Coxd60d4392008-07-22 11:12:15 +0100654 switch (
655 connection_info->connections[i].port_function_id) {
656 case VISOR_FUNCTION_GENERIC:
657 string = "Generic";
658 break;
659 case VISOR_FUNCTION_DEBUGGER:
660 string = "Debugger";
661 break;
662 case VISOR_FUNCTION_HOTSYNC:
663 string = "HotSync";
664 break;
665 case VISOR_FUNCTION_CONSOLE:
666 string = "Console";
667 break;
668 case VISOR_FUNCTION_REMOTE_FILE_SYS:
669 string = "Remote File System";
670 break;
671 default:
672 string = "unknown";
673 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 }
675 dev_info(dev, "%s: port %d, is for %s use\n",
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700676 serial->type->description,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 connection_info->connections[i].port, string);
678 }
679 }
680 /*
681 * Handle devices that report invalid stuff here.
682 */
683 if (num_ports == 0 || num_ports > 2) {
Alan Coxd60d4392008-07-22 11:12:15 +0100684 dev_warn(dev, "%s: No valid connect info available\n",
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700685 serial->type->description);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 num_ports = 2;
687 }
Alan Coxd60d4392008-07-22 11:12:15 +0100688
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700689 dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690 num_ports);
691
692 /*
693 * save off our num_ports info so that we can use it in the
694 * calc_num_ports callback
695 */
696 usb_set_serial_data(serial, (void *)(long)num_ports);
697
Alan Coxd60d4392008-07-22 11:12:15 +0100698 /* ask for the number of bytes available, but ignore the
699 response as it is broken */
700 retval = usb_control_msg(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 usb_rcvctrlpipe(serial->dev, 0),
702 VISOR_REQUEST_BYTES_AVAILABLE,
703 0xc2, 0x0000, 0x0005, transfer_buffer,
704 0x02, 300);
705 if (retval < 0)
706 dev_err(dev, "%s - error %d getting bytes available request\n",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800707 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 retval = 0;
709
710exit:
Alan Coxd60d4392008-07-22 11:12:15 +0100711 kfree(transfer_buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712
713 return retval;
714}
715
Alan Coxd60d4392008-07-22 11:12:15 +0100716static int palm_os_4_probe(struct usb_serial *serial,
717 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718{
719 struct device *dev = &serial->dev->dev;
720 struct palm_ext_connection_info *connection_info;
721 unsigned char *transfer_buffer;
722 int retval;
723
Harvey Harrison441b62c2008-03-03 16:08:34 -0800724 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725
Alan Coxd60d4392008-07-22 11:12:15 +0100726 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 if (!transfer_buffer) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800728 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 sizeof(*connection_info));
730 return -ENOMEM;
731 }
732
Alan Coxd60d4392008-07-22 11:12:15 +0100733 retval = usb_control_msg(serial->dev,
734 usb_rcvctrlpipe(serial->dev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 PALM_GET_EXT_CONNECTION_INFORMATION,
736 0xc2, 0x0000, 0x0000, transfer_buffer,
Alan Coxd60d4392008-07-22 11:12:15 +0100737 sizeof(*connection_info), 300);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 if (retval < 0)
739 dev_err(dev, "%s - error %d getting connection info\n",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800740 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 else
Harvey Harrison441b62c2008-03-03 16:08:34 -0800742 usb_serial_debug_data(debug, &serial->dev->dev, __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 retval, transfer_buffer);
744
Alan Coxd60d4392008-07-22 11:12:15 +0100745 kfree(transfer_buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 return 0;
747}
748
749
Alan Coxd60d4392008-07-22 11:12:15 +0100750static int visor_probe(struct usb_serial *serial,
751 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752{
753 int retval = 0;
Alan Coxd60d4392008-07-22 11:12:15 +0100754 int (*startup)(struct usb_serial *serial,
755 const struct usb_device_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756
Harvey Harrison441b62c2008-03-03 16:08:34 -0800757 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758
759 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700760 dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 serial->dev->actconfig->desc.bConfigurationValue);
762 return -ENODEV;
763 }
764
765 if (id->driver_info) {
766 startup = (void *)id->driver_info;
767 retval = startup(serial, id);
768 }
769
770 return retval;
771}
772
Alan Coxd60d4392008-07-22 11:12:15 +0100773static int visor_calc_num_ports(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774{
775 int num_ports = (int)(long)(usb_get_serial_data(serial));
776
777 if (num_ports)
778 usb_set_serial_data(serial, NULL);
779
780 return num_ports;
781}
782
783static int generic_startup(struct usb_serial *serial)
784{
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700785 struct usb_serial_port **ports = serial->port;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786 struct visor_private *priv;
787 int i;
788
789 for (i = 0; i < serial->num_ports; ++i) {
Alan Coxd60d4392008-07-22 11:12:15 +0100790 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700791 if (!priv) {
792 while (i-- != 0) {
793 priv = usb_get_serial_port_data(ports[i]);
794 usb_set_serial_port_data(ports[i], NULL);
795 kfree(priv);
796 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797 return -ENOMEM;
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700798 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799 spin_lock_init(&priv->lock);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700800 usb_set_serial_port_data(ports[i], priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801 }
802 return 0;
803}
804
Alan Coxd60d4392008-07-22 11:12:15 +0100805static int clie_3_5_startup(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806{
807 struct device *dev = &serial->dev->dev;
808 int result;
809 u8 data;
810
Harvey Harrison441b62c2008-03-03 16:08:34 -0800811 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812
813 /*
814 * Note that PEG-300 series devices expect the following two calls.
815 */
816
817 /* get the config number */
Alan Coxd60d4392008-07-22 11:12:15 +0100818 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
820 0, 0, &data, 1, 3000);
821 if (result < 0) {
Alan Coxd60d4392008-07-22 11:12:15 +0100822 dev_err(dev, "%s: get config number failed: %d\n",
823 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824 return result;
825 }
826 if (result != 1) {
Alan Coxd60d4392008-07-22 11:12:15 +0100827 dev_err(dev, "%s: get config number bad return length: %d\n",
828 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829 return -EIO;
830 }
831
832 /* get the interface number */
Alan Coxd60d4392008-07-22 11:12:15 +0100833 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
834 USB_REQ_GET_INTERFACE,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835 USB_DIR_IN | USB_RECIP_INTERFACE,
836 0, 0, &data, 1, 3000);
837 if (result < 0) {
Alan Coxd60d4392008-07-22 11:12:15 +0100838 dev_err(dev, "%s: get interface number failed: %d\n",
839 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840 return result;
841 }
842 if (result != 1) {
Alan Coxd60d4392008-07-22 11:12:15 +0100843 dev_err(dev,
844 "%s: get interface number bad return length: %d\n",
845 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 return -EIO;
847 }
848
849 return generic_startup(serial);
850}
Alan Coxd60d4392008-07-22 11:12:15 +0100851
852static int treo_attach(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853{
854 struct usb_serial_port *swap_port;
855
856 /* Only do this endpoint hack for the Handspring devices with
857 * interrupt in endpoints, which for now are the Treo devices. */
Alan Coxd60d4392008-07-22 11:12:15 +0100858 if (!((le16_to_cpu(serial->dev->descriptor.idVendor)
859 == HANDSPRING_VENDOR_ID) ||
860 (le16_to_cpu(serial->dev->descriptor.idVendor)
861 == KYOCERA_VENDOR_ID)) ||
862 (serial->num_interrupt_in == 0))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 goto generic_startup;
864
Harvey Harrison441b62c2008-03-03 16:08:34 -0800865 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866
867 /*
Alan Coxd60d4392008-07-22 11:12:15 +0100868 * It appears that Treos and Kyoceras want to use the
869 * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
870 * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
871 * Note that swapping the bulk out endpoints would break lots of
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872 * apps that want to communicate on the second port.
873 */
874#define COPY_PORT(dest, src) \
Alan Coxd60d4392008-07-22 11:12:15 +0100875 do { \
876 dest->read_urb = src->read_urb; \
877 dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
878 dest->bulk_in_buffer = src->bulk_in_buffer; \
879 dest->interrupt_in_urb = src->interrupt_in_urb; \
880 dest->interrupt_in_endpointAddress = \
881 src->interrupt_in_endpointAddress;\
882 dest->interrupt_in_buffer = src->interrupt_in_buffer; \
883 } while (0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884
885 swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
886 if (!swap_port)
887 return -ENOMEM;
888 COPY_PORT(swap_port, serial->port[0]);
889 COPY_PORT(serial->port[0], serial->port[1]);
890 COPY_PORT(serial->port[1], swap_port);
891 kfree(swap_port);
892
893generic_startup:
894 return generic_startup(serial);
895}
896
Alan Coxd60d4392008-07-22 11:12:15 +0100897static int clie_5_attach(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898{
Harvey Harrison441b62c2008-03-03 16:08:34 -0800899 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
Alan Coxd60d4392008-07-22 11:12:15 +0100901 /* TH55 registers 2 ports.
902 Communication in from the UX50/TH55 uses bulk_in_endpointAddress
903 from port 0. Communication out to the UX50/TH55 uses
904 bulk_out_endpointAddress from port 1
905
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906 Lets do a quick and dirty mapping
907 */
Alan Coxd60d4392008-07-22 11:12:15 +0100908
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909 /* some sanity check */
910 if (serial->num_ports < 2)
911 return -1;
Alan Coxd60d4392008-07-22 11:12:15 +0100912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913 /* port 0 now uses the modified endpoint Address */
Alan Coxd60d4392008-07-22 11:12:15 +0100914 serial->port[0]->bulk_out_endpointAddress =
915 serial->port[1]->bulk_out_endpointAddress;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
917 return generic_startup(serial);
918}
919
Alan Sternf9c99bb2009-06-02 11:53:55 -0400920static void visor_release(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921{
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700922 struct visor_private *priv;
923 int i;
924
Harvey Harrison441b62c2008-03-03 16:08:34 -0800925 dbg("%s", __func__);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700926
927 for (i = 0; i < serial->num_ports; i++) {
928 priv = usb_get_serial_port_data(serial->port[i]);
Alan Sternf9c99bb2009-06-02 11:53:55 -0400929 kfree(priv);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700930 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931}
932
Alan Coxd60d4392008-07-22 11:12:15 +0100933static int __init visor_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934{
935 int i, retval;
936 /* Only if parameters were passed to us */
Alan Coxd60d4392008-07-22 11:12:15 +0100937 if (vendor > 0 && product > 0) {
938 struct usb_device_id usb_dev_temp[] = {
939 {
940 USB_DEVICE(vendor, product),
941 .driver_info =
942 (kernel_ulong_t) &palm_os_4_probe
943 }
944 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945
946 /* Find the last entry in id_table */
Alan Coxd60d4392008-07-22 11:12:15 +0100947 for (i = 0;; i++) {
948 if (id_table[i].idVendor == 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949 id_table[i] = usb_dev_temp[0];
950 break;
951 }
952 }
953 /* Find the last entry in id_table_combined */
Alan Coxd60d4392008-07-22 11:12:15 +0100954 for (i = 0;; i++) {
955 if (id_table_combined[i].idVendor == 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956 id_table_combined[i] = usb_dev_temp[0];
957 break;
958 }
959 }
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -0700960 printk(KERN_INFO KBUILD_MODNAME
961 ": Untested USB device specified at time of module insertion\n");
962 printk(KERN_INFO KBUILD_MODNAME
963 ": Warning: This is not guaranteed to work\n");
964 printk(KERN_INFO KBUILD_MODNAME
965 ": Using a newer kernel is preferred to this method\n");
966 printk(KERN_INFO KBUILD_MODNAME
967 ": Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968 vendor, product);
969 }
970 retval = usb_serial_register(&handspring_device);
971 if (retval)
972 goto failed_handspring_register;
973 retval = usb_serial_register(&clie_3_5_device);
974 if (retval)
975 goto failed_clie_3_5_register;
976 retval = usb_serial_register(&clie_5_device);
977 if (retval)
978 goto failed_clie_5_register;
979 retval = usb_register(&visor_driver);
Alan Coxd60d4392008-07-22 11:12:15 +0100980 if (retval)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981 goto failed_usb_register;
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -0700982 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
984 return 0;
985failed_usb_register:
986 usb_serial_deregister(&clie_5_device);
987failed_clie_5_register:
988 usb_serial_deregister(&clie_3_5_device);
989failed_clie_3_5_register:
990 usb_serial_deregister(&handspring_device);
991failed_handspring_register:
992 return retval;
993}
994
995
996static void __exit visor_exit (void)
997{
Alan Coxd60d4392008-07-22 11:12:15 +0100998 usb_deregister(&visor_driver);
999 usb_serial_deregister(&handspring_device);
1000 usb_serial_deregister(&clie_3_5_device);
1001 usb_serial_deregister(&clie_5_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002}
1003
1004
1005module_init(visor_init);
1006module_exit(visor_exit);
1007
Alan Coxd60d4392008-07-22 11:12:15 +01001008MODULE_AUTHOR(DRIVER_AUTHOR);
1009MODULE_DESCRIPTION(DRIVER_DESC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010MODULE_LICENSE("GPL");
1011
1012module_param(debug, bool, S_IRUGO | S_IWUSR);
1013MODULE_PARM_DESC(debug, "Debug enabled or not");
1014module_param(stats, bool, S_IRUGO | S_IWUSR);
1015MODULE_PARM_DESC(stats, "Enables statistics or not");
1016
1017module_param(vendor, ushort, 0);
1018MODULE_PARM_DESC(vendor, "User specified vendor ID");
1019module_param(product, ushort, 0);
1020MODULE_PARM_DESC(product, "User specified product ID");
1021